Andrew's git - gitweb.git/blob - gitweb/gitweb.perl

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'blame'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "search" => \&git_search,
 429        "search_help" => \&git_search_help,
 430        "shortlog" => \&git_shortlog,
 431        "summary" => \&git_summary,
 432        "tag" => \&git_tag,
 433        "tags" => \&git_tags,
 434        "tree" => \&git_tree,
 435        "snapshot" => \&git_snapshot,
 436        # those below don't need $project
 437        "opml" => \&git_opml,
 438        "project_list" => \&git_project_list,
 439        "project_index" => \&git_project_index,
 440);
 441
 442if (defined $project) {
 443        $action ||= 'summary';
 444} else {
 445        $action ||= 'project_list';
 446}
 447if (!defined($actions{$action})) {
 448        die_error(undef, "Unknown action");
 449}
 450if ($action !~ m/^(opml|project_list|project_index)$/ &&
 451    !$project) {
 452        die_error(undef, "Project needed");
 453}
 454$actions{$action}->();
 455exit;
 456
 457## ======================================================================
 458## action links
 459
 460sub href(%) {
 461        my %params = @_;
 462        my $href = $my_uri;
 463
 464        # XXX: Warning: If you touch this, check the search form for updating,
 465        # too.
 466
 467        my @mapping = (
 468                project => "p",
 469                action => "a",
 470                file_name => "f",
 471                file_parent => "fp",
 472                hash => "h",
 473                hash_parent => "hp",
 474                hash_base => "hb",
 475                hash_parent_base => "hpb",
 476                page => "pg",
 477                order => "o",
 478                searchtext => "s",
 479                searchtype => "st",
 480        );
 481        my %mapping = @mapping;
 482
 483        $params{'project'} = $project unless exists $params{'project'};
 484
 485        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 486        if ($use_pathinfo) {
 487                # use PATH_INFO for project name
 488                $href .= "/$params{'project'}" if defined $params{'project'};
 489                delete $params{'project'};
 490
 491                # Summary just uses the project path URL
 492                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 493                        delete $params{'action'};
 494                }
 495        }
 496
 497        # now encode the parameters explicitly
 498        my @result = ();
 499        for (my $i = 0; $i < @mapping; $i += 2) {
 500                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 501                if (defined $params{$name}) {
 502                        push @result, $symbol . "=" . esc_param($params{$name});
 503                }
 504        }
 505        $href .= "?" . join(';', @result) if scalar @result;
 506
 507        return $href;
 508}
 509
 510
 511## ======================================================================
 512## validation, quoting/unquoting and escaping
 513
 514sub validate_pathname {
 515        my $input = shift || return undef;
 516
 517        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 518        # at the beginning, at the end, and between slashes.
 519        # also this catches doubled slashes
 520        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 521                return undef;
 522        }
 523        # no null characters
 524        if ($input =~ m!\0!) {
 525                return undef;
 526        }
 527        return $input;
 528}
 529
 530sub validate_refname {
 531        my $input = shift || return undef;
 532
 533        # textual hashes are O.K.
 534        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 535                return $input;
 536        }
 537        # it must be correct pathname
 538        $input = validate_pathname($input)
 539                or return undef;
 540        # restrictions on ref name according to git-check-ref-format
 541        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 542                return undef;
 543        }
 544        return $input;
 545}
 546
 547# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 548sub to_utf8 {
 549        my $str = shift;
 550        return decode("utf8", $str, Encode::FB_DEFAULT);
 551}
 552
 553# quote unsafe chars, but keep the slash, even when it's not
 554# correct, but quoted slashes look too horrible in bookmarks
 555sub esc_param {
 556        my $str = shift;
 557        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 558        $str =~ s/\+/%2B/g;
 559        $str =~ s/ /\+/g;
 560        return $str;
 561}
 562
 563# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 564sub esc_url {
 565        my $str = shift;
 566        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 567        $str =~ s/\+/%2B/g;
 568        $str =~ s/ /\+/g;
 569        return $str;
 570}
 571
 572# replace invalid utf8 character with SUBSTITUTION sequence
 573sub esc_html ($;%) {
 574        my $str = shift;
 575        my %opts = @_;
 576
 577        $str = to_utf8($str);
 578        $str = escapeHTML($str);
 579        if ($opts{'-nbsp'}) {
 580                $str =~ s/ /&nbsp;/g;
 581        }
 582        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 583        return $str;
 584}
 585
 586# Make control characterss "printable".
 587sub quot_cec {
 588        my $cntrl = shift;
 589        my %es = ( # character escape codes, aka escape sequences
 590                   "\t" => '\t',   # tab            (HT)
 591                   "\n" => '\n',   # line feed      (LF)
 592                   "\r" => '\r',   # carrige return (CR)
 593                   "\f" => '\f',   # form feed      (FF)
 594                   "\b" => '\b',   # backspace      (BS)
 595                   "\a" => '\a',   # alarm (bell)   (BEL)
 596                   "\e" => '\e',   # escape         (ESC)
 597                   "\013" => '\v', # vertical tab   (VT)
 598                   "\000" => '\0', # nul character  (NUL)
 599                   );
 600        my $chr = ( (exists $es{$cntrl})
 601                    ? $es{$cntrl}
 602                    : sprintf('\%03o', ord($cntrl)) );
 603        return "<span class=\"cntrl\">$chr</span>";
 604}
 605
 606# Alternatively use unicode control pictures codepoints.
 607sub quot_upr {
 608        my $cntrl = shift;
 609        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 610        return "<span class=\"cntrl\">$chr</span>";
 611}
 612
 613# quote control characters and escape filename to HTML
 614sub esc_path {
 615        my $str = shift;
 616
 617        $str = esc_html($str);
 618        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 619        return $str;
 620}
 621
 622# git may return quoted and escaped filenames
 623sub unquote {
 624        my $str = shift;
 625
 626        sub unq {
 627                my $seq = shift;
 628                my %es = ( # character escape codes, aka escape sequences
 629                        't' => "\t",   # tab            (HT, TAB)
 630                        'n' => "\n",   # newline        (NL)
 631                        'r' => "\r",   # return         (CR)
 632                        'f' => "\f",   # form feed      (FF)
 633                        'b' => "\b",   # backspace      (BS)
 634                        'a' => "\a",   # alarm (bell)   (BEL)
 635                        'e' => "\e",   # escape         (ESC)
 636                        'v' => "\013", # vertical tab   (VT)
 637                );
 638
 639                if ($seq =~ m/^[0-7]{1,3}$/) {
 640                        # octal char sequence
 641                        return chr(oct($seq));
 642                } elsif (exists $es{$seq}) {
 643                        # C escape sequence, aka character escape code
 644                        return $es{$seq}
 645                }
 646                # quoted ordinary character
 647                return $seq;
 648        }
 649
 650        if ($str =~ m/^"(.*)"$/) {
 651                # needs unquoting
 652                $str = $1;
 653                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 654        }
 655        return $str;
 656}
 657
 658# escape tabs (convert tabs to spaces)
 659sub untabify {
 660        my $line = shift;
 661
 662        while ((my $pos = index($line, "\t")) != -1) {
 663                if (my $count = (8 - ($pos % 8))) {
 664                        my $spaces = ' ' x $count;
 665                        $line =~ s/\t/$spaces/;
 666                }
 667        }
 668
 669        return $line;
 670}
 671
 672sub project_in_list {
 673        my $project = shift;
 674        my @list = git_get_projects_list();
 675        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 676}
 677
 678## ----------------------------------------------------------------------
 679## HTML aware string manipulation
 680
 681sub chop_str {
 682        my $str = shift;
 683        my $len = shift;
 684        my $add_len = shift || 10;
 685
 686        # allow only $len chars, but don't cut a word if it would fit in $add_len
 687        # if it doesn't fit, cut it if it's still longer than the dots we would add
 688        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 689        my $body = $1;
 690        my $tail = $2;
 691        if (length($tail) > 4) {
 692                $tail = " ...";
 693                $body =~ s/&[^;]*$//; # remove chopped character entities
 694        }
 695        return "$body$tail";
 696}
 697
 698## ----------------------------------------------------------------------
 699## functions returning short strings
 700
 701# CSS class for given age value (in seconds)
 702sub age_class {
 703        my $age = shift;
 704
 705        if ($age < 60*60*2) {
 706                return "age0";
 707        } elsif ($age < 60*60*24*2) {
 708                return "age1";
 709        } else {
 710                return "age2";
 711        }
 712}
 713
 714# convert age in seconds to "nn units ago" string
 715sub age_string {
 716        my $age = shift;
 717        my $age_str;
 718
 719        if ($age > 60*60*24*365*2) {
 720                $age_str = (int $age/60/60/24/365);
 721                $age_str .= " years ago";
 722        } elsif ($age > 60*60*24*(365/12)*2) {
 723                $age_str = int $age/60/60/24/(365/12);
 724                $age_str .= " months ago";
 725        } elsif ($age > 60*60*24*7*2) {
 726                $age_str = int $age/60/60/24/7;
 727                $age_str .= " weeks ago";
 728        } elsif ($age > 60*60*24*2) {
 729                $age_str = int $age/60/60/24;
 730                $age_str .= " days ago";
 731        } elsif ($age > 60*60*2) {
 732                $age_str = int $age/60/60;
 733                $age_str .= " hours ago";
 734        } elsif ($age > 60*2) {
 735                $age_str = int $age/60;
 736                $age_str .= " min ago";
 737        } elsif ($age > 2) {
 738                $age_str = int $age;
 739                $age_str .= " sec ago";
 740        } else {
 741                $age_str .= " right now";
 742        }
 743        return $age_str;
 744}
 745
 746# convert file mode in octal to symbolic file mode string
 747sub mode_str {
 748        my $mode = oct shift;
 749
 750        if (S_ISDIR($mode & S_IFMT)) {
 751                return 'drwxr-xr-x';
 752        } elsif (S_ISLNK($mode)) {
 753                return 'lrwxrwxrwx';
 754        } elsif (S_ISREG($mode)) {
 755                # git cares only about the executable bit
 756                if ($mode & S_IXUSR) {
 757                        return '-rwxr-xr-x';
 758                } else {
 759                        return '-rw-r--r--';
 760                };
 761        } else {
 762                return '----------';
 763        }
 764}
 765
 766# convert file mode in octal to file type string
 767sub file_type {
 768        my $mode = shift;
 769
 770        if ($mode !~ m/^[0-7]+$/) {
 771                return $mode;
 772        } else {
 773                $mode = oct $mode;
 774        }
 775
 776        if (S_ISDIR($mode & S_IFMT)) {
 777                return "directory";
 778        } elsif (S_ISLNK($mode)) {
 779                return "symlink";
 780        } elsif (S_ISREG($mode)) {
 781                return "file";
 782        } else {
 783                return "unknown";
 784        }
 785}
 786
 787# convert file mode in octal to file type description string
 788sub file_type_long {
 789        my $mode = shift;
 790
 791        if ($mode !~ m/^[0-7]+$/) {
 792                return $mode;
 793        } else {
 794                $mode = oct $mode;
 795        }
 796
 797        if (S_ISDIR($mode & S_IFMT)) {
 798                return "directory";
 799        } elsif (S_ISLNK($mode)) {
 800                return "symlink";
 801        } elsif (S_ISREG($mode)) {
 802                if ($mode & S_IXUSR) {
 803                        return "executable";
 804                } else {
 805                        return "file";
 806                };
 807        } else {
 808                return "unknown";
 809        }
 810}
 811
 812
 813## ----------------------------------------------------------------------
 814## functions returning short HTML fragments, or transforming HTML fragments
 815## which don't beling to other sections
 816
 817# format line of commit message.
 818sub format_log_line_html {
 819        my $line = shift;
 820
 821        $line = esc_html($line, -nbsp=>1);
 822        if ($line =~ m/([0-9a-fA-F]{40})/) {
 823                my $hash_text = $1;
 824                if (git_get_type($hash_text) eq "commit") {
 825                        my $link =
 826                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 827                                        -class => "text"}, $hash_text);
 828                        $line =~ s/$hash_text/$link/;
 829                }
 830        }
 831        return $line;
 832}
 833
 834# format marker of refs pointing to given object
 835sub format_ref_marker {
 836        my ($refs, $id) = @_;
 837        my $markers = '';
 838
 839        if (defined $refs->{$id}) {
 840                foreach my $ref (@{$refs->{$id}}) {
 841                        my ($type, $name) = qw();
 842                        # e.g. tags/v2.6.11 or heads/next
 843                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 844                                $type = $1;
 845                                $name = $2;
 846                        } else {
 847                                $type = "ref";
 848                                $name = $ref;
 849                        }
 850
 851                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 852                }
 853        }
 854
 855        if ($markers) {
 856                return ' <span class="refs">'. $markers . '</span>';
 857        } else {
 858                return "";
 859        }
 860}
 861
 862# format, perhaps shortened and with markers, title line
 863sub format_subject_html {
 864        my ($long, $short, $href, $extra) = @_;
 865        $extra = '' unless defined($extra);
 866
 867        if (length($short) < length($long)) {
 868                return $cgi->a({-href => $href, -class => "list subject",
 869                                -title => to_utf8($long)},
 870                       esc_html($short) . $extra);
 871        } else {
 872                return $cgi->a({-href => $href, -class => "list subject"},
 873                       esc_html($long)  . $extra);
 874        }
 875}
 876
 877sub format_diff_line {
 878        my $line = shift;
 879        my $char = substr($line, 0, 1);
 880        my $diff_class = "";
 881
 882        chomp $line;
 883
 884        if ($char eq '+') {
 885                $diff_class = " add";
 886        } elsif ($char eq "-") {
 887                $diff_class = " rem";
 888        } elsif ($char eq "@") {
 889                $diff_class = " chunk_header";
 890        } elsif ($char eq "\\") {
 891                $diff_class = " incomplete";
 892        }
 893        $line = untabify($line);
 894        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 895}
 896
 897## ----------------------------------------------------------------------
 898## git utility subroutines, invoking git commands
 899
 900# returns path to the core git executable and the --git-dir parameter as list
 901sub git_cmd {
 902        return $GIT, '--git-dir='.$git_dir;
 903}
 904
 905# returns path to the core git executable and the --git-dir parameter as string
 906sub git_cmd_str {
 907        return join(' ', git_cmd());
 908}
 909
 910# get HEAD ref of given project as hash
 911sub git_get_head_hash {
 912        my $project = shift;
 913        my $o_git_dir = $git_dir;
 914        my $retval = undef;
 915        $git_dir = "$projectroot/$project";
 916        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 917                my $head = <$fd>;
 918                close $fd;
 919                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 920                        $retval = $1;
 921                }
 922        }
 923        if (defined $o_git_dir) {
 924                $git_dir = $o_git_dir;
 925        }
 926        return $retval;
 927}
 928
 929# get type of given object
 930sub git_get_type {
 931        my $hash = shift;
 932
 933        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 934        my $type = <$fd>;
 935        close $fd or return;
 936        chomp $type;
 937        return $type;
 938}
 939
 940sub git_get_project_config {
 941        my ($key, $type) = @_;
 942
 943        return unless ($key);
 944        $key =~ s/^gitweb\.//;
 945        return if ($key =~ m/\W/);
 946
 947        my @x = (git_cmd(), 'repo-config');
 948        if (defined $type) { push @x, $type; }
 949        push @x, "--get";
 950        push @x, "gitweb.$key";
 951        my $val = qx(@x);
 952        chomp $val;
 953        return ($val);
 954}
 955
 956# get hash of given path at given ref
 957sub git_get_hash_by_path {
 958        my $base = shift;
 959        my $path = shift || return undef;
 960        my $type = shift;
 961
 962        $path =~ s,/+$,,;
 963
 964        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 965                or die_error(undef, "Open git-ls-tree failed");
 966        my $line = <$fd>;
 967        close $fd or return undef;
 968
 969        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 970        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 971        if (defined $type && $type ne $2) {
 972                # type doesn't match
 973                return undef;
 974        }
 975        return $3;
 976}
 977
 978## ......................................................................
 979## git utility functions, directly accessing git repository
 980
 981sub git_get_project_description {
 982        my $path = shift;
 983
 984        open my $fd, "$projectroot/$path/description" or return undef;
 985        my $descr = <$fd>;
 986        close $fd;
 987        chomp $descr;
 988        return $descr;
 989}
 990
 991sub git_get_project_url_list {
 992        my $path = shift;
 993
 994        open my $fd, "$projectroot/$path/cloneurl" or return;
 995        my @git_project_url_list = map { chomp; $_ } <$fd>;
 996        close $fd;
 997
 998        return wantarray ? @git_project_url_list : \@git_project_url_list;
 999}
1000
1001sub git_get_projects_list {
1002        my ($filter) = @_;
1003        my @list;
1004
1005        $filter ||= '';
1006        $filter =~ s/\.git$//;
1007
1008        if (-d $projects_list) {
1009                # search in directory
1010                my $dir = $projects_list . ($filter ? "/$filter" : '');
1011                # remove the trailing "/"
1012                $dir =~ s!/+$!!;
1013                my $pfxlen = length("$dir");
1014
1015                my ($check_forks) = gitweb_check_feature('forks');
1016
1017                File::Find::find({
1018                        follow_fast => 1, # follow symbolic links
1019                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1020                        wanted => sub {
1021                                # skip project-list toplevel, if we get it.
1022                                return if (m!^[/.]$!);
1023                                # only directories can be git repositories
1024                                return unless (-d $_);
1025
1026                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1027                                # we check related file in $projectroot
1028                                if ($check_forks and $subdir =~ m#/.#) {
1029                                        $File::Find::prune = 1;
1030                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1031                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1032                                        $File::Find::prune = 1;
1033                                }
1034                        },
1035                }, "$dir");
1036
1037        } elsif (-f $projects_list) {
1038                # read from file(url-encoded):
1039                # 'git%2Fgit.git Linus+Torvalds'
1040                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1041                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1042                open my ($fd), $projects_list or return;
1043                while (my $line = <$fd>) {
1044                        chomp $line;
1045                        my ($path, $owner) = split ' ', $line;
1046                        $path = unescape($path);
1047                        $owner = unescape($owner);
1048                        if (!defined $path) {
1049                                next;
1050                        }
1051                        if ($filter ne '') {
1052                                # looking for forks;
1053                                my $pfx = substr($path, 0, length($filter));
1054                                if ($pfx ne $filter) {
1055                                        next;
1056                                }
1057                                my $sfx = substr($path, length($filter));
1058                                if ($sfx !~ /^\/.*\.git$/) {
1059                                        next;
1060                                }
1061                        }
1062                        if (check_export_ok("$projectroot/$path")) {
1063                                my $pr = {
1064                                        path => $path,
1065                                        owner => to_utf8($owner),
1066                                };
1067                                push @list, $pr
1068                        }
1069                }
1070                close $fd;
1071        }
1072        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1073        return @list;
1074}
1075
1076sub git_get_project_owner {
1077        my $project = shift;
1078        my $owner;
1079
1080        return undef unless $project;
1081
1082        # read from file (url-encoded):
1083        # 'git%2Fgit.git Linus+Torvalds'
1084        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1085        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1086        if (-f $projects_list) {
1087                open (my $fd , $projects_list);
1088                while (my $line = <$fd>) {
1089                        chomp $line;
1090                        my ($pr, $ow) = split ' ', $line;
1091                        $pr = unescape($pr);
1092                        $ow = unescape($ow);
1093                        if ($pr eq $project) {
1094                                $owner = to_utf8($ow);
1095                                last;
1096                        }
1097                }
1098                close $fd;
1099        }
1100        if (!defined $owner) {
1101                $owner = get_file_owner("$projectroot/$project");
1102        }
1103
1104        return $owner;
1105}
1106
1107sub git_get_last_activity {
1108        my ($path) = @_;
1109        my $fd;
1110
1111        $git_dir = "$projectroot/$path";
1112        open($fd, "-|", git_cmd(), 'for-each-ref',
1113             '--format=%(refname) %(committer)',
1114             '--sort=-committerdate',
1115             'refs/heads') or return;
1116        my $most_recent = <$fd>;
1117        close $fd or return;
1118        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1119                my $timestamp = $1;
1120                my $age = time - $timestamp;
1121                return ($age, age_string($age));
1122        }
1123}
1124
1125sub git_get_references {
1126        my $type = shift || "";
1127        my %refs;
1128        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1129        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1130        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1131                or return;
1132
1133        while (my $line = <$fd>) {
1134                chomp $line;
1135                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1136                        if (defined $refs{$1}) {
1137                                push @{$refs{$1}}, $2;
1138                        } else {
1139                                $refs{$1} = [ $2 ];
1140                        }
1141                }
1142        }
1143        close $fd or return;
1144        return \%refs;
1145}
1146
1147sub git_get_rev_name_tags {
1148        my $hash = shift || return undef;
1149
1150        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1151                or return;
1152        my $name_rev = <$fd>;
1153        close $fd;
1154
1155        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1156                return $1;
1157        } else {
1158                # catches also '$hash undefined' output
1159                return undef;
1160        }
1161}
1162
1163## ----------------------------------------------------------------------
1164## parse to hash functions
1165
1166sub parse_date {
1167        my $epoch = shift;
1168        my $tz = shift || "-0000";
1169
1170        my %date;
1171        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1172        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1173        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1174        $date{'hour'} = $hour;
1175        $date{'minute'} = $min;
1176        $date{'mday'} = $mday;
1177        $date{'day'} = $days[$wday];
1178        $date{'month'} = $months[$mon];
1179        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1180                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1181        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1182                             $mday, $months[$mon], $hour ,$min;
1183
1184        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1185        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1186        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1187        $date{'hour_local'} = $hour;
1188        $date{'minute_local'} = $min;
1189        $date{'tz_local'} = $tz;
1190        $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1191                                   1900+$year, $mon+1, $mday,
1192                                   $hour, $min, $sec, $tz);
1193        return %date;
1194}
1195
1196sub parse_tag {
1197        my $tag_id = shift;
1198        my %tag;
1199        my @comment;
1200
1201        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1202        $tag{'id'} = $tag_id;
1203        while (my $line = <$fd>) {
1204                chomp $line;
1205                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1206                        $tag{'object'} = $1;
1207                } elsif ($line =~ m/^type (.+)$/) {
1208                        $tag{'type'} = $1;
1209                } elsif ($line =~ m/^tag (.+)$/) {
1210                        $tag{'name'} = $1;
1211                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1212                        $tag{'author'} = $1;
1213                        $tag{'epoch'} = $2;
1214                        $tag{'tz'} = $3;
1215                } elsif ($line =~ m/--BEGIN/) {
1216                        push @comment, $line;
1217                        last;
1218                } elsif ($line eq "") {
1219                        last;
1220                }
1221        }
1222        push @comment, <$fd>;
1223        $tag{'comment'} = \@comment;
1224        close $fd or return;
1225        if (!defined $tag{'name'}) {
1226                return
1227        };
1228        return %tag
1229}
1230
1231sub parse_commit {
1232        my $commit_id = shift;
1233        my $commit_text = shift;
1234
1235        my @commit_lines;
1236        my %co;
1237
1238        if (defined $commit_text) {
1239                @commit_lines = @$commit_text;
1240        } else {
1241                local $/ = "\0";
1242                open my $fd, "-|", git_cmd(), "rev-list",
1243                        "--header", "--parents", "--max-count=1",
1244                        $commit_id, "--"
1245                        or return;
1246                @commit_lines = split '\n', <$fd>;
1247                close $fd or return;
1248                pop @commit_lines;
1249        }
1250        my $header = shift @commit_lines;
1251        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1252                return;
1253        }
1254        ($co{'id'}, my @parents) = split ' ', $header;
1255        $co{'parents'} = \@parents;
1256        $co{'parent'} = $parents[0];
1257        while (my $line = shift @commit_lines) {
1258                last if $line eq "\n";
1259                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1260                        $co{'tree'} = $1;
1261                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1262                        $co{'author'} = $1;
1263                        $co{'author_epoch'} = $2;
1264                        $co{'author_tz'} = $3;
1265                        if ($co{'author'} =~ m/^([^<]+) </) {
1266                                $co{'author_name'} = $1;
1267                        } else {
1268                                $co{'author_name'} = $co{'author'};
1269                        }
1270                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1271                        $co{'committer'} = $1;
1272                        $co{'committer_epoch'} = $2;
1273                        $co{'committer_tz'} = $3;
1274                        $co{'committer_name'} = $co{'committer'};
1275                        $co{'committer_name'} =~ s/ <.*//;
1276                }
1277        }
1278        if (!defined $co{'tree'}) {
1279                return;
1280        };
1281
1282        foreach my $title (@commit_lines) {
1283                $title =~ s/^    //;
1284                if ($title ne "") {
1285                        $co{'title'} = chop_str($title, 80, 5);
1286                        # remove leading stuff of merges to make the interesting part visible
1287                        if (length($title) > 50) {
1288                                $title =~ s/^Automatic //;
1289                                $title =~ s/^merge (of|with) /Merge ... /i;
1290                                if (length($title) > 50) {
1291                                        $title =~ s/(http|rsync):\/\///;
1292                                }
1293                                if (length($title) > 50) {
1294                                        $title =~ s/(master|www|rsync)\.//;
1295                                }
1296                                if (length($title) > 50) {
1297                                        $title =~ s/kernel.org:?//;
1298                                }
1299                                if (length($title) > 50) {
1300                                        $title =~ s/\/pub\/scm//;
1301                                }
1302                        }
1303                        $co{'title_short'} = chop_str($title, 50, 5);
1304                        last;
1305                }
1306        }
1307        if ($co{'title'} eq "") {
1308                $co{'title'} = $co{'title_short'} = '(no commit message)';
1309        }
1310        # remove added spaces
1311        foreach my $line (@commit_lines) {
1312                $line =~ s/^    //;
1313        }
1314        $co{'comment'} = \@commit_lines;
1315
1316        my $age = time - $co{'committer_epoch'};
1317        $co{'age'} = $age;
1318        $co{'age_string'} = age_string($age);
1319        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1320        if ($age > 60*60*24*7*2) {
1321                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1322                $co{'age_string_age'} = $co{'age_string'};
1323        } else {
1324                $co{'age_string_date'} = $co{'age_string'};
1325                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1326        }
1327        return %co;
1328}
1329
1330# parse ref from ref_file, given by ref_id, with given type
1331sub parse_ref {
1332        my $ref_file = shift;
1333        my $ref_id = shift;
1334        my $type = shift || git_get_type($ref_id);
1335        my %ref_item;
1336
1337        $ref_item{'type'} = $type;
1338        $ref_item{'id'} = $ref_id;
1339        $ref_item{'epoch'} = 0;
1340        $ref_item{'age'} = "unknown";
1341        if ($type eq "tag") {
1342                my %tag = parse_tag($ref_id);
1343                $ref_item{'comment'} = $tag{'comment'};
1344                if ($tag{'type'} eq "commit") {
1345                        my %co = parse_commit($tag{'object'});
1346                        $ref_item{'epoch'} = $co{'committer_epoch'};
1347                        $ref_item{'age'} = $co{'age_string'};
1348                } elsif (defined($tag{'epoch'})) {
1349                        my $age = time - $tag{'epoch'};
1350                        $ref_item{'epoch'} = $tag{'epoch'};
1351                        $ref_item{'age'} = age_string($age);
1352                }
1353                $ref_item{'reftype'} = $tag{'type'};
1354                $ref_item{'name'} = $tag{'name'};
1355                $ref_item{'refid'} = $tag{'object'};
1356        } elsif ($type eq "commit"){
1357                my %co = parse_commit($ref_id);
1358                $ref_item{'reftype'} = "commit";
1359                $ref_item{'name'} = $ref_file;
1360                $ref_item{'title'} = $co{'title'};
1361                $ref_item{'refid'} = $ref_id;
1362                $ref_item{'epoch'} = $co{'committer_epoch'};
1363                $ref_item{'age'} = $co{'age_string'};
1364        } else {
1365                $ref_item{'reftype'} = $type;
1366                $ref_item{'name'} = $ref_file;
1367                $ref_item{'refid'} = $ref_id;
1368        }
1369
1370        return %ref_item;
1371}
1372
1373# parse line of git-diff-tree "raw" output
1374sub parse_difftree_raw_line {
1375        my $line = shift;
1376        my %res;
1377
1378        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1379        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1380        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1381                $res{'from_mode'} = $1;
1382                $res{'to_mode'} = $2;
1383                $res{'from_id'} = $3;
1384                $res{'to_id'} = $4;
1385                $res{'status'} = $5;
1386                $res{'similarity'} = $6;
1387                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1388                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1389                } else {
1390                        $res{'file'} = unquote($7);
1391                }
1392        }
1393        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1394        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1395                $res{'commit'} = $1;
1396        }
1397
1398        return wantarray ? %res : \%res;
1399}
1400
1401# parse line of git-ls-tree output
1402sub parse_ls_tree_line ($;%) {
1403        my $line = shift;
1404        my %opts = @_;
1405        my %res;
1406
1407        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1408        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1409
1410        $res{'mode'} = $1;
1411        $res{'type'} = $2;
1412        $res{'hash'} = $3;
1413        if ($opts{'-z'}) {
1414                $res{'name'} = $4;
1415        } else {
1416                $res{'name'} = unquote($4);
1417        }
1418
1419        return wantarray ? %res : \%res;
1420}
1421
1422## ......................................................................
1423## parse to array of hashes functions
1424
1425sub git_get_heads_list {
1426        my $limit = shift;
1427        my @headslist;
1428
1429        open my $fd, '-|', git_cmd(), 'for-each-ref',
1430                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1431                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1432                'refs/heads'
1433                or return;
1434        while (my $line = <$fd>) {
1435                my %ref_item;
1436
1437                chomp $line;
1438                my ($refinfo, $committerinfo) = split(/\0/, $line);
1439                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1440                my ($committer, $epoch, $tz) =
1441                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1442                $name =~ s!^refs/heads/!!;
1443
1444                $ref_item{'name'}  = $name;
1445                $ref_item{'id'}    = $hash;
1446                $ref_item{'title'} = $title || '(no commit message)';
1447                $ref_item{'epoch'} = $epoch;
1448                if ($epoch) {
1449                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1450                } else {
1451                        $ref_item{'age'} = "unknown";
1452                }
1453
1454                push @headslist, \%ref_item;
1455        }
1456        close $fd;
1457
1458        return wantarray ? @headslist : \@headslist;
1459}
1460
1461sub git_get_tags_list {
1462        my $limit = shift;
1463        my @tagslist;
1464
1465        open my $fd, '-|', git_cmd(), 'for-each-ref',
1466                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1467                '--format=%(objectname) %(objecttype) %(refname) '.
1468                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1469                'refs/tags'
1470                or return;
1471        while (my $line = <$fd>) {
1472                my %ref_item;
1473
1474                chomp $line;
1475                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1476                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1477                my ($creator, $epoch, $tz) =
1478                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1479                $name =~ s!^refs/tags/!!;
1480
1481                $ref_item{'type'} = $type;
1482                $ref_item{'id'} = $id;
1483                $ref_item{'name'} = $name;
1484                if ($type eq "tag") {
1485                        $ref_item{'subject'} = $title;
1486                        $ref_item{'reftype'} = $reftype;
1487                        $ref_item{'refid'}   = $refid;
1488                } else {
1489                        $ref_item{'reftype'} = $type;
1490                        $ref_item{'refid'}   = $id;
1491                }
1492
1493                if ($type eq "tag" || $type eq "commit") {
1494                        $ref_item{'epoch'} = $epoch;
1495                        if ($epoch) {
1496                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1497                        } else {
1498                                $ref_item{'age'} = "unknown";
1499                        }
1500                }
1501
1502                push @tagslist, \%ref_item;
1503        }
1504        close $fd;
1505
1506        return wantarray ? @tagslist : \@tagslist;
1507}
1508
1509## ----------------------------------------------------------------------
1510## filesystem-related functions
1511
1512sub get_file_owner {
1513        my $path = shift;
1514
1515        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1516        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1517        if (!defined $gcos) {
1518                return undef;
1519        }
1520        my $owner = $gcos;
1521        $owner =~ s/[,;].*$//;
1522        return to_utf8($owner);
1523}
1524
1525## ......................................................................
1526## mimetype related functions
1527
1528sub mimetype_guess_file {
1529        my $filename = shift;
1530        my $mimemap = shift;
1531        -r $mimemap or return undef;
1532
1533        my %mimemap;
1534        open(MIME, $mimemap) or return undef;
1535        while (<MIME>) {
1536                next if m/^#/; # skip comments
1537                my ($mime, $exts) = split(/\t+/);
1538                if (defined $exts) {
1539                        my @exts = split(/\s+/, $exts);
1540                        foreach my $ext (@exts) {
1541                                $mimemap{$ext} = $mime;
1542                        }
1543                }
1544        }
1545        close(MIME);
1546
1547        $filename =~ /\.([^.]*)$/;
1548        return $mimemap{$1};
1549}
1550
1551sub mimetype_guess {
1552        my $filename = shift;
1553        my $mime;
1554        $filename =~ /\./ or return undef;
1555
1556        if ($mimetypes_file) {
1557                my $file = $mimetypes_file;
1558                if ($file !~ m!^/!) { # if it is relative path
1559                        # it is relative to project
1560                        $file = "$projectroot/$project/$file";
1561                }
1562                $mime = mimetype_guess_file($filename, $file);
1563        }
1564        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1565        return $mime;
1566}
1567
1568sub blob_mimetype {
1569        my $fd = shift;
1570        my $filename = shift;
1571
1572        if ($filename) {
1573                my $mime = mimetype_guess($filename);
1574                $mime and return $mime;
1575        }
1576
1577        # just in case
1578        return $default_blob_plain_mimetype unless $fd;
1579
1580        if (-T $fd) {
1581                return 'text/plain' .
1582                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1583        } elsif (! $filename) {
1584                return 'application/octet-stream';
1585        } elsif ($filename =~ m/\.png$/i) {
1586                return 'image/png';
1587        } elsif ($filename =~ m/\.gif$/i) {
1588                return 'image/gif';
1589        } elsif ($filename =~ m/\.jpe?g$/i) {
1590                return 'image/jpeg';
1591        } else {
1592                return 'application/octet-stream';
1593        }
1594}
1595
1596## ======================================================================
1597## functions printing HTML: header, footer, error page
1598
1599sub git_header_html {
1600        my $status = shift || "200 OK";
1601        my $expires = shift;
1602
1603        my $title = "$site_name";
1604        if (defined $project) {
1605                $title .= " - $project";
1606                if (defined $action) {
1607                        $title .= "/$action";
1608                        if (defined $file_name) {
1609                                $title .= " - " . esc_path($file_name);
1610                                if ($action eq "tree" && $file_name !~ m|/$|) {
1611                                        $title .= "/";
1612                                }
1613                        }
1614                }
1615        }
1616        my $content_type;
1617        # require explicit support from the UA if we are to send the page as
1618        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1619        # we have to do this because MSIE sometimes globs '*/*', pretending to
1620        # support xhtml+xml but choking when it gets what it asked for.
1621        if (defined $cgi->http('HTTP_ACCEPT') &&
1622            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1623            $cgi->Accept('application/xhtml+xml') != 0) {
1624                $content_type = 'application/xhtml+xml';
1625        } else {
1626                $content_type = 'text/html';
1627        }
1628        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1629                           -status=> $status, -expires => $expires);
1630        print <<EOF;
1631<?xml version="1.0" encoding="utf-8"?>
1632<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1633<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1634<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1635<!-- git core binaries version $git_version -->
1636<head>
1637<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1638<meta name="generator" content="gitweb/$version git/$git_version"/>
1639<meta name="robots" content="index, nofollow"/>
1640<title>$title</title>
1641EOF
1642# print out each stylesheet that exist
1643        if (defined $stylesheet) {
1644#provides backwards capability for those people who define style sheet in a config file
1645                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1646        } else {
1647                foreach my $stylesheet (@stylesheets) {
1648                        next unless $stylesheet;
1649                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1650                }
1651        }
1652        if (defined $project) {
1653                printf('<link rel="alternate" title="%s log" '.
1654                       'href="%s" type="application/rss+xml"/>'."\n",
1655                       esc_param($project), href(action=>"rss"));
1656        } else {
1657                printf('<link rel="alternate" title="%s projects list" '.
1658                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1659                       $site_name, href(project=>undef, action=>"project_index"));
1660                printf('<link rel="alternate" title="%s projects logs" '.
1661                       'href="%s" type="text/x-opml"/>'."\n",
1662                       $site_name, href(project=>undef, action=>"opml"));
1663        }
1664        if (defined $favicon) {
1665                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1666        }
1667
1668        print "</head>\n" .
1669              "<body>\n";
1670
1671        if (-f $site_header) {
1672                open (my $fd, $site_header);
1673                print <$fd>;
1674                close $fd;
1675        }
1676
1677        print "<div class=\"page_header\">\n" .
1678              $cgi->a({-href => esc_url($logo_url),
1679                       -title => $logo_label},
1680                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1681        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1682        if (defined $project) {
1683                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1684                if (defined $action) {
1685                        print " / $action";
1686                }
1687                print "\n";
1688                if (!defined $searchtext) {
1689                        $searchtext = "";
1690                }
1691                my $search_hash;
1692                if (defined $hash_base) {
1693                        $search_hash = $hash_base;
1694                } elsif (defined $hash) {
1695                        $search_hash = $hash;
1696                } else {
1697                        $search_hash = "HEAD";
1698                }
1699                $cgi->param("a", "search");
1700                $cgi->param("h", $search_hash);
1701                $cgi->param("p", $project);
1702                print $cgi->startform(-method => "get", -action => $my_uri) .
1703                      "<div class=\"search\">\n" .
1704                      $cgi->hidden(-name => "p") . "\n" .
1705                      $cgi->hidden(-name => "a") . "\n" .
1706                      $cgi->hidden(-name => "h") . "\n" .
1707                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1708                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1709                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1710                      " search:\n",
1711                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1712                      "</div>" .
1713                      $cgi->end_form() . "\n";
1714        }
1715        print "</div>\n";
1716}
1717
1718sub git_footer_html {
1719        print "<div class=\"page_footer\">\n";
1720        if (defined $project) {
1721                my $descr = git_get_project_description($project);
1722                if (defined $descr) {
1723                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1724                }
1725                print $cgi->a({-href => href(action=>"rss"),
1726                              -class => "rss_logo"}, "RSS") . "\n";
1727        } else {
1728                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1729                              -class => "rss_logo"}, "OPML") . " ";
1730                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1731                              -class => "rss_logo"}, "TXT") . "\n";
1732        }
1733        print "</div>\n" ;
1734
1735        if (-f $site_footer) {
1736                open (my $fd, $site_footer);
1737                print <$fd>;
1738                close $fd;
1739        }
1740
1741        print "</body>\n" .
1742              "</html>";
1743}
1744
1745sub die_error {
1746        my $status = shift || "403 Forbidden";
1747        my $error = shift || "Malformed query, file missing or permission denied";
1748
1749        git_header_html($status);
1750        print <<EOF;
1751<div class="page_body">
1752<br /><br />
1753$status - $error
1754<br />
1755</div>
1756EOF
1757        git_footer_html();
1758        exit;
1759}
1760
1761## ----------------------------------------------------------------------
1762## functions printing or outputting HTML: navigation
1763
1764sub git_print_page_nav {
1765        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1766        $extra = '' if !defined $extra; # pager or formats
1767
1768        my @navs = qw(summary shortlog log commit commitdiff tree);
1769        if ($suppress) {
1770                @navs = grep { $_ ne $suppress } @navs;
1771        }
1772
1773        my %arg = map { $_ => {action=>$_} } @navs;
1774        if (defined $head) {
1775                for (qw(commit commitdiff)) {
1776                        $arg{$_}{hash} = $head;
1777                }
1778                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1779                        for (qw(shortlog log)) {
1780                                $arg{$_}{hash} = $head;
1781                        }
1782                }
1783        }
1784        $arg{tree}{hash} = $treehead if defined $treehead;
1785        $arg{tree}{hash_base} = $treebase if defined $treebase;
1786
1787        print "<div class=\"page_nav\">\n" .
1788                (join " | ",
1789                 map { $_ eq $current ?
1790                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1791                 } @navs);
1792        print "<br/>\n$extra<br/>\n" .
1793              "</div>\n";
1794}
1795
1796sub format_paging_nav {
1797        my ($action, $hash, $head, $page, $nrevs) = @_;
1798        my $paging_nav;
1799
1800
1801        if ($hash ne $head || $page) {
1802                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1803        } else {
1804                $paging_nav .= "HEAD";
1805        }
1806
1807        if ($page > 0) {
1808                $paging_nav .= " &sdot; " .
1809                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1810                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1811        } else {
1812                $paging_nav .= " &sdot; prev";
1813        }
1814
1815        if ($nrevs >= (100 * ($page+1)-1)) {
1816                $paging_nav .= " &sdot; " .
1817                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1818                                 -accesskey => "n", -title => "Alt-n"}, "next");
1819        } else {
1820                $paging_nav .= " &sdot; next";
1821        }
1822
1823        return $paging_nav;
1824}
1825
1826## ......................................................................
1827## functions printing or outputting HTML: div
1828
1829sub git_print_header_div {
1830        my ($action, $title, $hash, $hash_base) = @_;
1831        my %args = ();
1832
1833        $args{action} = $action;
1834        $args{hash} = $hash if $hash;
1835        $args{hash_base} = $hash_base if $hash_base;
1836
1837        print "<div class=\"header\">\n" .
1838              $cgi->a({-href => href(%args), -class => "title"},
1839              $title ? $title : $action) .
1840              "\n</div>\n";
1841}
1842
1843#sub git_print_authorship (\%) {
1844sub git_print_authorship {
1845        my $co = shift;
1846
1847        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1848        print "<div class=\"author_date\">" .
1849              esc_html($co->{'author_name'}) .
1850              " [$ad{'rfc2822'}";
1851        if ($ad{'hour_local'} < 6) {
1852                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1853                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1854        } else {
1855                printf(" (%02d:%02d %s)",
1856                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1857        }
1858        print "]</div>\n";
1859}
1860
1861sub git_print_page_path {
1862        my $name = shift;
1863        my $type = shift;
1864        my $hb = shift;
1865
1866
1867        print "<div class=\"page_path\">";
1868        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1869                      -title => 'tree root'}, "[$project]");
1870        print " / ";
1871        if (defined $name) {
1872                my @dirname = split '/', $name;
1873                my $basename = pop @dirname;
1874                my $fullname = '';
1875
1876                foreach my $dir (@dirname) {
1877                        $fullname .= ($fullname ? '/' : '') . $dir;
1878                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1879                                                     hash_base=>$hb),
1880                                      -title => esc_html($fullname)}, esc_path($dir));
1881                        print " / ";
1882                }
1883                if (defined $type && $type eq 'blob') {
1884                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1885                                                     hash_base=>$hb),
1886                                      -title => esc_html($name)}, esc_path($basename));
1887                } elsif (defined $type && $type eq 'tree') {
1888                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1889                                                     hash_base=>$hb),
1890                                      -title => esc_html($name)}, esc_path($basename));
1891                        print " / ";
1892                } else {
1893                        print esc_path($basename);
1894                }
1895        }
1896        print "<br/></div>\n";
1897}
1898
1899# sub git_print_log (\@;%) {
1900sub git_print_log ($;%) {
1901        my $log = shift;
1902        my %opts = @_;
1903
1904        if ($opts{'-remove_title'}) {
1905                # remove title, i.e. first line of log
1906                shift @$log;
1907        }
1908        # remove leading empty lines
1909        while (defined $log->[0] && $log->[0] eq "") {
1910                shift @$log;
1911        }
1912
1913        # print log
1914        my $signoff = 0;
1915        my $empty = 0;
1916        foreach my $line (@$log) {
1917                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1918                        $signoff = 1;
1919                        $empty = 0;
1920                        if (! $opts{'-remove_signoff'}) {
1921                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1922                                next;
1923                        } else {
1924                                # remove signoff lines
1925                                next;
1926                        }
1927                } else {
1928                        $signoff = 0;
1929                }
1930
1931                # print only one empty line
1932                # do not print empty line after signoff
1933                if ($line eq "") {
1934                        next if ($empty || $signoff);
1935                        $empty = 1;
1936                } else {
1937                        $empty = 0;
1938                }
1939
1940                print format_log_line_html($line) . "<br/>\n";
1941        }
1942
1943        if ($opts{'-final_empty_line'}) {
1944                # end with single empty line
1945                print "<br/>\n" unless $empty;
1946        }
1947}
1948
1949# print tree entry (row of git_tree), but without encompassing <tr> element
1950sub git_print_tree_entry {
1951        my ($t, $basedir, $hash_base, $have_blame) = @_;
1952
1953        my %base_key = ();
1954        $base_key{hash_base} = $hash_base if defined $hash_base;
1955
1956        # The format of a table row is: mode list link.  Where mode is
1957        # the mode of the entry, list is the name of the entry, an href,
1958        # and link is the action links of the entry.
1959
1960        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1961        if ($t->{'type'} eq "blob") {
1962                print "<td class=\"list\">" .
1963                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1964                                               file_name=>"$basedir$t->{'name'}", %base_key),
1965                                -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
1966                print "<td class=\"link\">";
1967                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1968                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1969                              "blob");
1970                if ($have_blame) {
1971                        print " | " .
1972                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1973                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
1974                                            "blame");
1975                }
1976                if (defined $hash_base) {
1977                        print " | " .
1978                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1979                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1980                                      "history");
1981                }
1982                print " | " .
1983                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1984                                               file_name=>"$basedir$t->{'name'}")},
1985                                "raw");
1986                print "</td>\n";
1987
1988        } elsif ($t->{'type'} eq "tree") {
1989                print "<td class=\"list\">";
1990                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1991                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1992                              esc_path($t->{'name'}));
1993                print "</td>\n";
1994                print "<td class=\"link\">";
1995                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1996                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1997                              "tree");
1998                if (defined $hash_base) {
1999                        print " | " .
2000                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2001                                                     file_name=>"$basedir$t->{'name'}")},
2002                                      "history");
2003                }
2004                print "</td>\n";
2005        }
2006}
2007
2008## ......................................................................
2009## functions printing large fragments of HTML
2010
2011sub git_difftree_body {
2012        my ($difftree, $hash, $parent) = @_;
2013        my ($have_blame) = gitweb_check_feature('blame');
2014        print "<div class=\"list_head\">\n";
2015        if ($#{$difftree} > 10) {
2016                print(($#{$difftree} + 1) . " files changed:\n");
2017        }
2018        print "</div>\n";
2019
2020        print "<table class=\"diff_tree\">\n";
2021        my $alternate = 1;
2022        my $patchno = 0;
2023        foreach my $line (@{$difftree}) {
2024                my %diff = parse_difftree_raw_line($line);
2025
2026                if ($alternate) {
2027                        print "<tr class=\"dark\">\n";
2028                } else {
2029                        print "<tr class=\"light\">\n";
2030                }
2031                $alternate ^= 1;
2032
2033                my ($to_mode_oct, $to_mode_str, $to_file_type);
2034                my ($from_mode_oct, $from_mode_str, $from_file_type);
2035                if ($diff{'to_mode'} ne ('0' x 6)) {
2036                        $to_mode_oct = oct $diff{'to_mode'};
2037                        if (S_ISREG($to_mode_oct)) { # only for regular file
2038                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2039                        }
2040                        $to_file_type = file_type($diff{'to_mode'});
2041                }
2042                if ($diff{'from_mode'} ne ('0' x 6)) {
2043                        $from_mode_oct = oct $diff{'from_mode'};
2044                        if (S_ISREG($to_mode_oct)) { # only for regular file
2045                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2046                        }
2047                        $from_file_type = file_type($diff{'from_mode'});
2048                }
2049
2050                if ($diff{'status'} eq "A") { # created
2051                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2052                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2053                        $mode_chng   .= "]</span>";
2054                        print "<td>";
2055                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2056                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2057                                      -class => "list"}, esc_path($diff{'file'}));
2058                        print "</td>\n";
2059                        print "<td>$mode_chng</td>\n";
2060                        print "<td class=\"link\">";
2061                        if ($action eq 'commitdiff') {
2062                                # link to patch
2063                                $patchno++;
2064                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2065                        }
2066                        print "</td>\n";
2067
2068                } elsif ($diff{'status'} eq "D") { # deleted
2069                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2070                        print "<td>";
2071                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2072                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2073                                       -class => "list"}, esc_path($diff{'file'}));
2074                        print "</td>\n";
2075                        print "<td>$mode_chng</td>\n";
2076                        print "<td class=\"link\">";
2077                        if ($action eq 'commitdiff') {
2078                                # link to patch
2079                                $patchno++;
2080                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2081                                print " | ";
2082                        }
2083                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2084                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2085                                      "blob") . " | ";
2086                        if ($have_blame) {
2087                                print $cgi->a({-href =>
2088                                                   href(action=>"blame",
2089                                                        hash_base=>$parent,
2090                                                        file_name=>$diff{'file'})},
2091                                              "blame") . " | ";
2092                        }
2093                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2094                                                     file_name=>$diff{'file'})},
2095                                      "history");
2096                        print "</td>\n";
2097
2098                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2099                        my $mode_chnge = "";
2100                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2101                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2102                                if ($from_file_type != $to_file_type) {
2103                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2104                                }
2105                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2106                                        if ($from_mode_str && $to_mode_str) {
2107                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2108                                        } elsif ($to_mode_str) {
2109                                                $mode_chnge .= " mode: $to_mode_str";
2110                                        }
2111                                }
2112                                $mode_chnge .= "]</span>\n";
2113                        }
2114                        print "<td>";
2115                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2116                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2117                                      -class => "list"}, esc_path($diff{'file'}));
2118                        print "</td>\n";
2119                        print "<td>$mode_chnge</td>\n";
2120                        print "<td class=\"link\">";
2121                        if ($action eq 'commitdiff') {
2122                                # link to patch
2123                                $patchno++;
2124                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2125                                      " | ";
2126                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2127                                # "commit" view and modified file (not onlu mode changed)
2128                                print $cgi->a({-href => href(action=>"blobdiff",
2129                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2130                                                             hash_base=>$hash, hash_parent_base=>$parent,
2131                                                             file_name=>$diff{'file'})},
2132                                              "diff") .
2133                                      " | ";
2134                        }
2135                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2136                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2137                                      "blob") . " | ";
2138                        if ($have_blame) {
2139                                print $cgi->a({-href => href(action=>"blame",
2140                                                             hash_base=>$hash,
2141                                                             file_name=>$diff{'file'})},
2142                                              "blame") . " | ";
2143                        }
2144                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2145                                                     file_name=>$diff{'file'})},
2146                                      "history");
2147                        print "</td>\n";
2148
2149                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2150                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2151                        my $nstatus = $status_name{$diff{'status'}};
2152                        my $mode_chng = "";
2153                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2154                                # mode also for directories, so we cannot use $to_mode_str
2155                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2156                        }
2157                        print "<td>" .
2158                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2159                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2160                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2161                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2162                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2163                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2164                                      -class => "list"}, esc_path($diff{'from_file'})) .
2165                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2166                              "<td class=\"link\">";
2167                        if ($action eq 'commitdiff') {
2168                                # link to patch
2169                                $patchno++;
2170                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2171                                      " | ";
2172                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2173                                # "commit" view and modified file (not only pure rename or copy)
2174                                print $cgi->a({-href => href(action=>"blobdiff",
2175                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2176                                                             hash_base=>$hash, hash_parent_base=>$parent,
2177                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2178                                              "diff") .
2179                                      " | ";
2180                        }
2181                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2182                                                     hash_base=>$parent, file_name=>$diff{'from_file'})},
2183                                      "blob") . " | ";
2184                        if ($have_blame) {
2185                                print $cgi->a({-href => href(action=>"blame",
2186                                                             hash_base=>$hash,
2187                                                             file_name=>$diff{'to_file'})},
2188                                              "blame") . " | ";
2189                        }
2190                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2191                                                    file_name=>$diff{'from_file'})},
2192                                      "history");
2193                        print "</td>\n";
2194
2195                } # we should not encounter Unmerged (U) or Unknown (X) status
2196                print "</tr>\n";
2197        }
2198        print "</table>\n";
2199}
2200
2201sub git_patchset_body {
2202        my ($fd, $difftree, $hash, $hash_parent) = @_;
2203
2204        my $patch_idx = 0;
2205        my $in_header = 0;
2206        my $patch_found = 0;
2207        my $diffinfo;
2208        my (%from, %to);
2209
2210        print "<div class=\"patchset\">\n";
2211
2212        LINE:
2213        while (my $patch_line = <$fd>) {
2214                chomp $patch_line;
2215
2216                if ($patch_line =~ m/^diff /) { # "git diff" header
2217                        # beginning of patch (in patchset)
2218                        if ($patch_found) {
2219                                # close extended header for previous empty patch
2220                                if ($in_header) {
2221                                        print "</div>\n" # class="diff extended_header"
2222                                }
2223                                # close previous patch
2224                                print "</div>\n"; # class="patch"
2225                        } else {
2226                                # first patch in patchset
2227                                $patch_found = 1;
2228                        }
2229                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2230
2231                        # read and prepare patch information
2232                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2233                                # pre-parsed (or generated by hand)
2234                                $diffinfo = $difftree->[$patch_idx];
2235                        } else {
2236                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2237                        }
2238                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2239                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2240                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2241                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2242                                                     hash=>$diffinfo->{'from_id'},
2243                                                     file_name=>$from{'file'});
2244                        }
2245                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2246                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2247                                                   hash=>$diffinfo->{'to_id'},
2248                                                   file_name=>$to{'file'});
2249                        }
2250                        $patch_idx++;
2251
2252                        # print "git diff" header
2253                        $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2254                        if ($from{'href'}) {
2255                                $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2256                                                       'a/' . esc_path($from{'file'}));
2257                        } else { # file was added
2258                                $patch_line .= 'a/' . esc_path($from{'file'});
2259                        }
2260                        $patch_line .= ' ';
2261                        if ($to{'href'}) {
2262                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2263                                                       'b/' . esc_path($to{'file'}));
2264                        } else { # file was deleted
2265                                $patch_line .= 'b/' . esc_path($to{'file'});
2266                        }
2267
2268                        print "<div class=\"diff header\">$patch_line</div>\n";
2269                        print "<div class=\"diff extended_header\">\n";
2270                        $in_header = 1;
2271                        next LINE;
2272                }
2273
2274                if ($in_header) {
2275                        if ($patch_line !~ m/^---/) {
2276                                # match <path>
2277                                if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2278                                        $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2279                                                                esc_path($from{'file'}));
2280                                }
2281                                if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2282                                        $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2283                                                              esc_path($to{'file'}));
2284                                }
2285                                # match <mode>
2286                                if ($patch_line =~ m/\s(\d{6})$/) {
2287                                        $patch_line .= '<span class="info"> (' .
2288                                                       file_type_long($1) .
2289                                                       ')</span>';
2290                                }
2291                                # match <hash>
2292                                if ($patch_line =~ m/^index/) {
2293                                        my ($from_link, $to_link);
2294                                        if ($from{'href'}) {
2295                                                $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2296                                                                     substr($diffinfo->{'from_id'},0,7));
2297                                        } else {
2298                                                $from_link = '0' x 7;
2299                                        }
2300                                        if ($to{'href'}) {
2301                                                $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2302                                                                   substr($diffinfo->{'to_id'},0,7));
2303                                        } else {
2304                                                $to_link = '0' x 7;
2305                                        }
2306                                        my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2307                                        $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2308                                }
2309                                print $patch_line . "<br/>\n";
2310
2311                        } else {
2312                                #$in_header && $patch_line =~ m/^---/;
2313                                print "</div>\n"; # class="diff extended_header"
2314                                $in_header = 0;
2315
2316                                if ($from{'href'}) {
2317                                        $patch_line = '--- a/' .
2318                                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2319                                                              esc_path($from{'file'}));
2320                                }
2321                                print "<div class=\"diff from_file\">$patch_line</div>\n";
2322
2323                                $patch_line = <$fd>;
2324                                chomp $patch_line;
2325
2326                                #$patch_line =~ m/^+++/;
2327                                if ($to{'href'}) {
2328                                        $patch_line = '+++ b/' .
2329                                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2330                                                              esc_path($to{'file'}));
2331                                }
2332                                print "<div class=\"diff to_file\">$patch_line</div>\n";
2333
2334                        }
2335
2336                        next LINE;
2337                }
2338
2339                print format_diff_line($patch_line);
2340        }
2341        print "</div>\n" if $in_header; # extended header
2342
2343        print "</div>\n" if $patch_found; # class="patch"
2344
2345        print "</div>\n"; # class="patchset"
2346}
2347
2348# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2349
2350sub git_project_list_body {
2351        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2352
2353        my ($check_forks) = gitweb_check_feature('forks');
2354
2355        my @projects;
2356        foreach my $pr (@$projlist) {
2357                my (@aa) = git_get_last_activity($pr->{'path'});
2358                unless (@aa) {
2359                        next;
2360                }
2361                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2362                if (!defined $pr->{'descr'}) {
2363                        my $descr = git_get_project_description($pr->{'path'}) || "";
2364                        $pr->{'descr'} = chop_str($descr, 25, 5);
2365                }
2366                if (!defined $pr->{'owner'}) {
2367                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2368                }
2369                if ($check_forks) {
2370                        my $pname = $pr->{'path'};
2371                        if (($pname =~ s/\.git$//) &&
2372                            ($pname !~ /\/$/) &&
2373                            (-d "$projectroot/$pname")) {
2374                                $pr->{'forks'} = "-d $projectroot/$pname";
2375                        }
2376                        else {
2377                                $pr->{'forks'} = 0;
2378                        }
2379                }
2380                push @projects, $pr;
2381        }
2382
2383        $order ||= "project";
2384        $from = 0 unless defined $from;
2385        $to = $#projects if (!defined $to || $#projects < $to);
2386
2387        print "<table class=\"project_list\">\n";
2388        unless ($no_header) {
2389                print "<tr>\n";
2390                if ($check_forks) {
2391                        print "<th></th>\n";
2392                }
2393                if ($order eq "project") {
2394                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2395                        print "<th>Project</th>\n";
2396                } else {
2397                        print "<th>" .
2398                              $cgi->a({-href => href(project=>undef, order=>'project'),
2399                                       -class => "header"}, "Project") .
2400                              "</th>\n";
2401                }
2402                if ($order eq "descr") {
2403                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2404                        print "<th>Description</th>\n";
2405                } else {
2406                        print "<th>" .
2407                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2408                                       -class => "header"}, "Description") .
2409                              "</th>\n";
2410                }
2411                if ($order eq "owner") {
2412                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2413                        print "<th>Owner</th>\n";
2414                } else {
2415                        print "<th>" .
2416                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2417                                       -class => "header"}, "Owner") .
2418                              "</th>\n";
2419                }
2420                if ($order eq "age") {
2421                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2422                        print "<th>Last Change</th>\n";
2423                } else {
2424                        print "<th>" .
2425                              $cgi->a({-href => href(project=>undef, order=>'age'),
2426                                       -class => "header"}, "Last Change") .
2427                              "</th>\n";
2428                }
2429                print "<th></th>\n" .
2430                      "</tr>\n";
2431        }
2432        my $alternate = 1;
2433        for (my $i = $from; $i <= $to; $i++) {
2434                my $pr = $projects[$i];
2435                if ($alternate) {
2436                        print "<tr class=\"dark\">\n";
2437                } else {
2438                        print "<tr class=\"light\">\n";
2439                }
2440                $alternate ^= 1;
2441                if ($check_forks) {
2442                        print "<td>";
2443                        if ($pr->{'forks'}) {
2444                                print "<!-- $pr->{'forks'} -->\n";
2445                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2446                        }
2447                        print "</td>\n";
2448                }
2449                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2450                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2451                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2452                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2453                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2454                      $pr->{'age_string'} . "</td>\n" .
2455                      "<td class=\"link\">" .
2456                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2457                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2458                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2459                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2460                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2461                      "</td>\n" .
2462                      "</tr>\n";
2463        }
2464        if (defined $extra) {
2465                print "<tr>\n";
2466                if ($check_forks) {
2467                        print "<td></td>\n";
2468                }
2469                print "<td colspan=\"5\">$extra</td>\n" .
2470                      "</tr>\n";
2471        }
2472        print "</table>\n";
2473}
2474
2475sub git_shortlog_body {
2476        # uses global variable $project
2477        my ($revlist, $from, $to, $refs, $extra) = @_;
2478
2479        $from = 0 unless defined $from;
2480        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2481
2482        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2483        my $alternate = 1;
2484        for (my $i = $from; $i <= $to; $i++) {
2485                my $commit = $revlist->[$i];
2486                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2487                my $ref = format_ref_marker($refs, $commit);
2488                my %co = parse_commit($commit);
2489                if ($alternate) {
2490                        print "<tr class=\"dark\">\n";
2491                } else {
2492                        print "<tr class=\"light\">\n";
2493                }
2494                $alternate ^= 1;
2495                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2496                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2497                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2498                      "<td>";
2499                print format_subject_html($co{'title'}, $co{'title_short'},
2500                                          href(action=>"commit", hash=>$commit), $ref);
2501                print "</td>\n" .
2502                      "<td class=\"link\">" .
2503                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2504                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2505                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2506                if (gitweb_have_snapshot()) {
2507                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2508                }
2509                print "</td>\n" .
2510                      "</tr>\n";
2511        }
2512        if (defined $extra) {
2513                print "<tr>\n" .
2514                      "<td colspan=\"4\">$extra</td>\n" .
2515                      "</tr>\n";
2516        }
2517        print "</table>\n";
2518}
2519
2520sub git_history_body {
2521        # Warning: assumes constant type (blob or tree) during history
2522        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2523
2524        $from = 0 unless defined $from;
2525        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2526
2527        print "<table class=\"history\" cellspacing=\"0\">\n";
2528        my $alternate = 1;
2529        for (my $i = $from; $i <= $to; $i++) {
2530                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2531                        next;
2532                }
2533
2534                my $commit = $1;
2535                my %co = parse_commit($commit);
2536                if (!%co) {
2537                        next;
2538                }
2539
2540                my $ref = format_ref_marker($refs, $commit);
2541
2542                if ($alternate) {
2543                        print "<tr class=\"dark\">\n";
2544                } else {
2545                        print "<tr class=\"light\">\n";
2546                }
2547                $alternate ^= 1;
2548                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2549                      # shortlog uses      chop_str($co{'author_name'}, 10)
2550                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2551                      "<td>";
2552                # originally git_history used chop_str($co{'title'}, 50)
2553                print format_subject_html($co{'title'}, $co{'title_short'},
2554                                          href(action=>"commit", hash=>$commit), $ref);
2555                print "</td>\n" .
2556                      "<td class=\"link\">" .
2557                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2558                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2559
2560                if ($ftype eq 'blob') {
2561                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2562                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2563                        if (defined $blob_current && defined $blob_parent &&
2564                                        $blob_current ne $blob_parent) {
2565                                print " | " .
2566                                        $cgi->a({-href => href(action=>"blobdiff",
2567                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2568                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2569                                                               file_name=>$file_name)},
2570                                                "diff to current");
2571                        }
2572                }
2573                print "</td>\n" .
2574                      "</tr>\n";
2575        }
2576        if (defined $extra) {
2577                print "<tr>\n" .
2578                      "<td colspan=\"4\">$extra</td>\n" .
2579                      "</tr>\n";
2580        }
2581        print "</table>\n";
2582}
2583
2584sub git_tags_body {
2585        # uses global variable $project
2586        my ($taglist, $from, $to, $extra) = @_;
2587        $from = 0 unless defined $from;
2588        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2589
2590        print "<table class=\"tags\" cellspacing=\"0\">\n";
2591        my $alternate = 1;
2592        for (my $i = $from; $i <= $to; $i++) {
2593                my $entry = $taglist->[$i];
2594                my %tag = %$entry;
2595                my $comment = $tag{'subject'};
2596                my $comment_short;
2597                if (defined $comment) {
2598                        $comment_short = chop_str($comment, 30, 5);
2599                }
2600                if ($alternate) {
2601                        print "<tr class=\"dark\">\n";
2602                } else {
2603                        print "<tr class=\"light\">\n";
2604                }
2605                $alternate ^= 1;
2606                print "<td><i>$tag{'age'}</i></td>\n" .
2607                      "<td>" .
2608                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2609                               -class => "list name"}, esc_html($tag{'name'})) .
2610                      "</td>\n" .
2611                      "<td>";
2612                if (defined $comment) {
2613                        print format_subject_html($comment, $comment_short,
2614                                                  href(action=>"tag", hash=>$tag{'id'}));
2615                }
2616                print "</td>\n" .
2617                      "<td class=\"selflink\">";
2618                if ($tag{'type'} eq "tag") {
2619                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2620                } else {
2621                        print "&nbsp;";
2622                }
2623                print "</td>\n" .
2624                      "<td class=\"link\">" . " | " .
2625                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2626                if ($tag{'reftype'} eq "commit") {
2627                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2628                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2629                } elsif ($tag{'reftype'} eq "blob") {
2630                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2631                }
2632                print "</td>\n" .
2633                      "</tr>";
2634        }
2635        if (defined $extra) {
2636                print "<tr>\n" .
2637                      "<td colspan=\"5\">$extra</td>\n" .
2638                      "</tr>\n";
2639        }
2640        print "</table>\n";
2641}
2642
2643sub git_heads_body {
2644        # uses global variable $project
2645        my ($headlist, $head, $from, $to, $extra) = @_;
2646        $from = 0 unless defined $from;
2647        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2648
2649        print "<table class=\"heads\" cellspacing=\"0\">\n";
2650        my $alternate = 1;
2651        for (my $i = $from; $i <= $to; $i++) {
2652                my $entry = $headlist->[$i];
2653                my %ref = %$entry;
2654                my $curr = $ref{'id'} eq $head;
2655                if ($alternate) {
2656                        print "<tr class=\"dark\">\n";
2657                } else {
2658                        print "<tr class=\"light\">\n";
2659                }
2660                $alternate ^= 1;
2661                print "<td><i>$ref{'age'}</i></td>\n" .
2662                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2663                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2664                               -class => "list name"},esc_html($ref{'name'})) .
2665                      "</td>\n" .
2666                      "<td class=\"link\">" .
2667                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2668                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2669                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2670                      "</td>\n" .
2671                      "</tr>";
2672        }
2673        if (defined $extra) {
2674                print "<tr>\n" .
2675                      "<td colspan=\"3\">$extra</td>\n" .
2676                      "</tr>\n";
2677        }
2678        print "</table>\n";
2679}
2680
2681## ======================================================================
2682## ======================================================================
2683## actions
2684
2685sub git_project_list {
2686        my $order = $cgi->param('o');
2687        if (defined $order && $order !~ m/project|descr|owner|age/) {
2688                die_error(undef, "Unknown order parameter");
2689        }
2690
2691        my @list = git_get_projects_list();
2692        if (!@list) {
2693                die_error(undef, "No projects found");
2694        }
2695
2696        git_header_html();
2697        if (-f $home_text) {
2698                print "<div class=\"index_include\">\n";
2699                open (my $fd, $home_text);
2700                print <$fd>;
2701                close $fd;
2702                print "</div>\n";
2703        }
2704        git_project_list_body(\@list, $order);
2705        git_footer_html();
2706}
2707
2708sub git_forks {
2709        my $order = $cgi->param('o');
2710        if (defined $order && $order !~ m/project|descr|owner|age/) {
2711                die_error(undef, "Unknown order parameter");
2712        }
2713
2714        my @list = git_get_projects_list($project);
2715        if (!@list) {
2716                die_error(undef, "No forks found");
2717        }
2718
2719        git_header_html();
2720        git_print_page_nav('','');
2721        git_print_header_div('summary', "$project forks");
2722        git_project_list_body(\@list, $order);
2723        git_footer_html();
2724}
2725
2726sub git_project_index {
2727        my @projects = git_get_projects_list($project);
2728
2729        print $cgi->header(
2730                -type => 'text/plain',
2731                -charset => 'utf-8',
2732                -content_disposition => 'inline; filename="index.aux"');
2733
2734        foreach my $pr (@projects) {
2735                if (!exists $pr->{'owner'}) {
2736                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2737                }
2738
2739                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2740                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2741                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2742                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2743                $path  =~ s/ /\+/g;
2744                $owner =~ s/ /\+/g;
2745
2746                print "$path $owner\n";
2747        }
2748}
2749
2750sub git_summary {
2751        my $descr = git_get_project_description($project) || "none";
2752        my $head = git_get_head_hash($project);
2753        my %co = parse_commit($head);
2754        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2755
2756        my $owner = git_get_project_owner($project);
2757
2758        my $refs = git_get_references();
2759        my @taglist  = git_get_tags_list(15);
2760        my @headlist = git_get_heads_list(15);
2761        my @forklist;
2762        my ($check_forks) = gitweb_check_feature('forks');
2763
2764        if ($check_forks) {
2765                @forklist = git_get_projects_list($project);
2766        }
2767
2768        git_header_html();
2769        git_print_page_nav('summary','', $head);
2770
2771        print "<div class=\"title\">&nbsp;</div>\n";
2772        print "<table cellspacing=\"0\">\n" .
2773              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2774              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2775              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2776        # use per project git URL list in $projectroot/$project/cloneurl
2777        # or make project git URL from git base URL and project name
2778        my $url_tag = "URL";
2779        my @url_list = git_get_project_url_list($project);
2780        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2781        foreach my $git_url (@url_list) {
2782                next unless $git_url;
2783                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2784                $url_tag = "";
2785        }
2786        print "</table>\n";
2787
2788        if (-s "$projectroot/$project/README.html") {
2789                if (open my $fd, "$projectroot/$project/README.html") {
2790                        print "<div class=\"title\">readme</div>\n";
2791                        print $_ while (<$fd>);
2792                        close $fd;
2793                }
2794        }
2795
2796        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2797                git_get_head_hash($project), "--"
2798                or die_error(undef, "Open git-rev-list failed");
2799        my @revlist = map { chomp; $_ } <$fd>;
2800        close $fd;
2801        git_print_header_div('shortlog');
2802        git_shortlog_body(\@revlist, 0, 15, $refs,
2803                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2804
2805        if (@taglist) {
2806                git_print_header_div('tags');
2807                git_tags_body(\@taglist, 0, 15,
2808                              $cgi->a({-href => href(action=>"tags")}, "..."));
2809        }
2810
2811        if (@headlist) {
2812                git_print_header_div('heads');
2813                git_heads_body(\@headlist, $head, 0, 15,
2814                               $cgi->a({-href => href(action=>"heads")}, "..."));
2815        }
2816
2817        if (@forklist) {
2818                git_print_header_div('forks');
2819                git_project_list_body(\@forklist, undef, 0, 15,
2820                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2821                                      'noheader');
2822        }
2823
2824        git_footer_html();
2825}
2826
2827sub git_tag {
2828        my $head = git_get_head_hash($project);
2829        git_header_html();
2830        git_print_page_nav('','', $head,undef,$head);
2831        my %tag = parse_tag($hash);
2832        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2833        print "<div class=\"title_text\">\n" .
2834              "<table cellspacing=\"0\">\n" .
2835              "<tr>\n" .
2836              "<td>object</td>\n" .
2837              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2838                               $tag{'object'}) . "</td>\n" .
2839              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2840                                              $tag{'type'}) . "</td>\n" .
2841              "</tr>\n";
2842        if (defined($tag{'author'})) {
2843                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2844                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2845                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2846                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2847                        "</td></tr>\n";
2848        }
2849        print "</table>\n\n" .
2850              "</div>\n";
2851        print "<div class=\"page_body\">";
2852        my $comment = $tag{'comment'};
2853        foreach my $line (@$comment) {
2854                chomp($line);
2855                print esc_html($line) . "<br/>\n";
2856        }
2857        print "</div>\n";
2858        git_footer_html();
2859}
2860
2861sub git_blame2 {
2862        my $fd;
2863        my $ftype;
2864
2865        my ($have_blame) = gitweb_check_feature('blame');
2866        if (!$have_blame) {
2867                die_error('403 Permission denied', "Permission denied");
2868        }
2869        die_error('404 Not Found', "File name not defined") if (!$file_name);
2870        $hash_base ||= git_get_head_hash($project);
2871        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2872        my %co = parse_commit($hash_base)
2873                or die_error(undef, "Reading commit failed");
2874        if (!defined $hash) {
2875                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2876                        or die_error(undef, "Error looking up file");
2877        }
2878        $ftype = git_get_type($hash);
2879        if ($ftype !~ "blob") {
2880                die_error("400 Bad Request", "Object is not a blob");
2881        }
2882        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2883              $file_name, $hash_base)
2884                or die_error(undef, "Open git-blame failed");
2885        git_header_html();
2886        my $formats_nav =
2887                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2888                        "blob") .
2889                " | " .
2890                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2891                        "history") .
2892                " | " .
2893                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2894                        "HEAD");
2895        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2896        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2897        git_print_page_path($file_name, $ftype, $hash_base);
2898        my @rev_color = (qw(light2 dark2));
2899        my $num_colors = scalar(@rev_color);
2900        my $current_color = 0;
2901        my $last_rev;
2902        print <<HTML;
2903<div class="page_body">
2904<table class="blame">
2905<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2906HTML
2907        my %metainfo = ();
2908        while (1) {
2909                $_ = <$fd>;
2910                last unless defined $_;
2911                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2912                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2913                if (!exists $metainfo{$full_rev}) {
2914                        $metainfo{$full_rev} = {};
2915                }
2916                my $meta = $metainfo{$full_rev};
2917                while (<$fd>) {
2918                        last if (s/^\t//);
2919                        if (/^(\S+) (.*)$/) {
2920                                $meta->{$1} = $2;
2921                        }
2922                }
2923                my $data = $_;
2924                chomp($data);
2925                my $rev = substr($full_rev, 0, 8);
2926                my $author = $meta->{'author'};
2927                my %date = parse_date($meta->{'author-time'},
2928                                      $meta->{'author-tz'});
2929                my $date = $date{'iso-tz'};
2930                if ($group_size) {
2931                        $current_color = ++$current_color % $num_colors;
2932                }
2933                print "<tr class=\"$rev_color[$current_color]\">\n";
2934                if ($group_size) {
2935                        print "<td class=\"sha1\"";
2936                        print " title=\"". esc_html($author) . ", $date\"";
2937                        print " rowspan=\"$group_size\"" if ($group_size > 1);
2938                        print ">";
2939                        print $cgi->a({-href => href(action=>"commit",
2940                                                     hash=>$full_rev,
2941                                                     file_name=>$file_name)},
2942                                      esc_html($rev));
2943                        print "</td>\n";
2944                }
2945                my $blamed = href(action => 'blame',
2946                                  file_name => $meta->{'filename'},
2947                                  hash_base => $full_rev);
2948                print "<td class=\"linenr\">";
2949                print $cgi->a({ -href => "$blamed#l$orig_lineno",
2950                                -id => "l$lineno",
2951                                -class => "linenr" },
2952                              esc_html($lineno));
2953                print "</td>";
2954                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2955                print "</tr>\n";
2956        }
2957        print "</table>\n";
2958        print "</div>";
2959        close $fd
2960                or print "Reading blob failed\n";
2961        git_footer_html();
2962}
2963
2964sub git_blame {
2965        my $fd;
2966
2967        my ($have_blame) = gitweb_check_feature('blame');
2968        if (!$have_blame) {
2969                die_error('403 Permission denied', "Permission denied");
2970        }
2971        die_error('404 Not Found', "File name not defined") if (!$file_name);
2972        $hash_base ||= git_get_head_hash($project);
2973        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2974        my %co = parse_commit($hash_base)
2975                or die_error(undef, "Reading commit failed");
2976        if (!defined $hash) {
2977                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2978                        or die_error(undef, "Error lookup file");
2979        }
2980        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2981                or die_error(undef, "Open git-annotate failed");
2982        git_header_html();
2983        my $formats_nav =
2984                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2985                        "blob") .
2986                " | " .
2987                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2988                        "history") .
2989                " | " .
2990                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2991                        "HEAD");
2992        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2993        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2994        git_print_page_path($file_name, 'blob', $hash_base);
2995        print "<div class=\"page_body\">\n";
2996        print <<HTML;
2997<table class="blame">
2998  <tr>
2999    <th>Commit</th>
3000    <th>Age</th>
3001    <th>Author</th>
3002    <th>Line</th>
3003    <th>Data</th>
3004  </tr>
3005HTML
3006        my @line_class = (qw(light dark));
3007        my $line_class_len = scalar (@line_class);
3008        my $line_class_num = $#line_class;
3009        while (my $line = <$fd>) {
3010                my $long_rev;
3011                my $short_rev;
3012                my $author;
3013                my $time;
3014                my $lineno;
3015                my $data;
3016                my $age;
3017                my $age_str;
3018                my $age_class;
3019
3020                chomp $line;
3021                $line_class_num = ($line_class_num + 1) % $line_class_len;
3022
3023                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3024                        $long_rev = $1;
3025                        $author   = $2;
3026                        $time     = $3;
3027                        $lineno   = $4;
3028                        $data     = $5;
3029                } else {
3030                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3031                        next;
3032                }
3033                $short_rev  = substr ($long_rev, 0, 8);
3034                $age        = time () - $time;
3035                $age_str    = age_string ($age);
3036                $age_str    =~ s/ /&nbsp;/g;
3037                $age_class  = age_class($age);
3038                $author     = esc_html ($author);
3039                $author     =~ s/ /&nbsp;/g;
3040
3041                $data = untabify($data);
3042                $data = esc_html ($data);
3043
3044                print <<HTML;
3045  <tr class="$line_class[$line_class_num]">
3046    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3047    <td class="$age_class">$age_str</td>
3048    <td>$author</td>
3049    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3050    <td class="pre">$data</td>
3051  </tr>
3052HTML
3053        } # while (my $line = <$fd>)
3054        print "</table>\n\n";
3055        close $fd
3056                or print "Reading blob failed.\n";
3057        print "</div>";
3058        git_footer_html();
3059}
3060
3061sub git_tags {
3062        my $head = git_get_head_hash($project);
3063        git_header_html();
3064        git_print_page_nav('','', $head,undef,$head);
3065        git_print_header_div('summary', $project);
3066
3067        my @tagslist = git_get_tags_list();
3068        if (@tagslist) {
3069                git_tags_body(\@tagslist);
3070        }
3071        git_footer_html();
3072}
3073
3074sub git_heads {
3075        my $head = git_get_head_hash($project);
3076        git_header_html();
3077        git_print_page_nav('','', $head,undef,$head);
3078        git_print_header_div('summary', $project);
3079
3080        my @headslist = git_get_heads_list();
3081        if (@headslist) {
3082                git_heads_body(\@headslist, $head);
3083        }
3084        git_footer_html();
3085}
3086
3087sub git_blob_plain {
3088        my $expires;
3089
3090        if (!defined $hash) {
3091                if (defined $file_name) {
3092                        my $base = $hash_base || git_get_head_hash($project);
3093                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3094                                or die_error(undef, "Error lookup file");
3095                } else {
3096                        die_error(undef, "No file name defined");
3097                }
3098        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3099                # blobs defined by non-textual hash id's can be cached
3100                $expires = "+1d";
3101        }
3102
3103        my $type = shift;
3104        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3105                or die_error(undef, "Couldn't cat $file_name, $hash");
3106
3107        $type ||= blob_mimetype($fd, $file_name);
3108
3109        # save as filename, even when no $file_name is given
3110        my $save_as = "$hash";
3111        if (defined $file_name) {
3112                $save_as = $file_name;
3113        } elsif ($type =~ m/^text\//) {
3114                $save_as .= '.txt';
3115        }
3116
3117        print $cgi->header(
3118                -type => "$type",
3119                -expires=>$expires,
3120                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3121        undef $/;
3122        binmode STDOUT, ':raw';
3123        print <$fd>;
3124        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3125        $/ = "\n";
3126        close $fd;
3127}
3128
3129sub git_blob {
3130        my $expires;
3131
3132        if (!defined $hash) {
3133                if (defined $file_name) {
3134                        my $base = $hash_base || git_get_head_hash($project);
3135                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3136                                or die_error(undef, "Error lookup file");
3137                } else {
3138                        die_error(undef, "No file name defined");
3139                }
3140        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3141                # blobs defined by non-textual hash id's can be cached
3142                $expires = "+1d";
3143        }
3144
3145        my ($have_blame) = gitweb_check_feature('blame');
3146        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3147                or die_error(undef, "Couldn't cat $file_name, $hash");
3148        my $mimetype = blob_mimetype($fd, $file_name);
3149        if ($mimetype !~ m/^text\//) {
3150                close $fd;
3151                return git_blob_plain($mimetype);
3152        }
3153        git_header_html(undef, $expires);
3154        my $formats_nav = '';
3155        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3156                if (defined $file_name) {
3157                        if ($have_blame) {
3158                                $formats_nav .=
3159                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3160                                                               hash=>$hash, file_name=>$file_name)},
3161                                                "blame") .
3162                                        " | ";
3163                        }
3164                        $formats_nav .=
3165                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3166                                                       hash=>$hash, file_name=>$file_name)},
3167                                        "history") .
3168                                " | " .
3169                                $cgi->a({-href => href(action=>"blob_plain",
3170                                                       hash=>$hash, file_name=>$file_name)},
3171                                        "raw") .
3172                                " | " .
3173                                $cgi->a({-href => href(action=>"blob",
3174                                                       hash_base=>"HEAD", file_name=>$file_name)},
3175                                        "HEAD");
3176                } else {
3177                        $formats_nav .=
3178                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3179                }
3180                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3181                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3182        } else {
3183                print "<div class=\"page_nav\">\n" .
3184                      "<br/><br/></div>\n" .
3185                      "<div class=\"title\">$hash</div>\n";
3186        }
3187        git_print_page_path($file_name, "blob", $hash_base);
3188        print "<div class=\"page_body\">\n";
3189        my $nr;
3190        while (my $line = <$fd>) {
3191                chomp $line;
3192                $nr++;
3193                $line = untabify($line);
3194                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3195                       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3196        }
3197        close $fd
3198                or print "Reading blob failed.\n";
3199        print "</div>";
3200        git_footer_html();
3201}
3202
3203sub git_tree {
3204        my $have_snapshot = gitweb_have_snapshot();
3205
3206        if (!defined $hash_base) {
3207                $hash_base = "HEAD";
3208        }
3209        if (!defined $hash) {
3210                if (defined $file_name) {
3211                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3212                } else {
3213                        $hash = $hash_base;
3214                }
3215        }
3216        $/ = "\0";
3217        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3218                or die_error(undef, "Open git-ls-tree failed");
3219        my @entries = map { chomp; $_ } <$fd>;
3220        close $fd or die_error(undef, "Reading tree failed");
3221        $/ = "\n";
3222
3223        my $refs = git_get_references();
3224        my $ref = format_ref_marker($refs, $hash_base);
3225        git_header_html();
3226        my $basedir = '';
3227        my ($have_blame) = gitweb_check_feature('blame');
3228        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3229                my @views_nav = ();
3230                if (defined $file_name) {
3231                        push @views_nav,
3232                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3233                                                       hash=>$hash, file_name=>$file_name)},
3234                                        "history"),
3235                                $cgi->a({-href => href(action=>"tree",
3236                                                       hash_base=>"HEAD", file_name=>$file_name)},
3237                                        "HEAD"),
3238                }
3239                if ($have_snapshot) {
3240                        # FIXME: Should be available when we have no hash base as well.
3241                        push @views_nav,
3242                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3243                                        "snapshot");
3244                }
3245                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3246                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3247        } else {
3248                undef $hash_base;
3249                print "<div class=\"page_nav\">\n";
3250                print "<br/><br/></div>\n";
3251                print "<div class=\"title\">$hash</div>\n";
3252        }
3253        if (defined $file_name) {
3254                $basedir = $file_name;
3255                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3256                        $basedir .= '/';
3257                }
3258        }
3259        git_print_page_path($file_name, 'tree', $hash_base);
3260        print "<div class=\"page_body\">\n";
3261        print "<table cellspacing=\"0\">\n";
3262        my $alternate = 1;
3263        # '..' (top directory) link if possible
3264        if (defined $hash_base &&
3265            defined $file_name && $file_name =~ m![^/]+$!) {
3266                if ($alternate) {
3267                        print "<tr class=\"dark\">\n";
3268                } else {
3269                        print "<tr class=\"light\">\n";
3270                }
3271                $alternate ^= 1;
3272
3273                my $up = $file_name;
3274                $up =~ s!/?[^/]+$!!;
3275                undef $up unless $up;
3276                # based on git_print_tree_entry
3277                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3278                print '<td class="list">';
3279                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3280                                             file_name=>$up)},
3281                              "..");
3282                print "</td>\n";
3283                print "<td class=\"link\"></td>\n";
3284
3285                print "</tr>\n";
3286        }
3287        foreach my $line (@entries) {
3288                my %t = parse_ls_tree_line($line, -z => 1);
3289
3290                if ($alternate) {
3291                        print "<tr class=\"dark\">\n";
3292                } else {
3293                        print "<tr class=\"light\">\n";
3294                }
3295                $alternate ^= 1;
3296
3297                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3298
3299                print "</tr>\n";
3300        }
3301        print "</table>\n" .
3302              "</div>";
3303        git_footer_html();
3304}
3305
3306sub git_snapshot {
3307        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3308        my $have_snapshot = (defined $ctype && defined $suffix);
3309        if (!$have_snapshot) {
3310                die_error('403 Permission denied', "Permission denied");
3311        }
3312
3313        if (!defined $hash) {
3314                $hash = git_get_head_hash($project);
3315        }
3316
3317        my $filename = basename($project) . "-$hash.tar.$suffix";
3318
3319        print $cgi->header(
3320                -type => 'application/x-tar',
3321                -content_encoding => $ctype,
3322                -content_disposition => 'inline; filename="' . "$filename" . '"',
3323                -status => '200 OK');
3324
3325        my $git = git_cmd_str();
3326        my $name = $project;
3327        $name =~ s/\047/\047\\\047\047/g;
3328        open my $fd, "-|",
3329        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3330                or die_error(undef, "Execute git-tar-tree failed.");
3331        binmode STDOUT, ':raw';
3332        print <$fd>;
3333        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3334        close $fd;
3335
3336}
3337
3338sub git_log {
3339        my $head = git_get_head_hash($project);
3340        if (!defined $hash) {
3341                $hash = $head;
3342        }
3343        if (!defined $page) {
3344                $page = 0;
3345        }
3346        my $refs = git_get_references();
3347
3348        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3349        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3350                or die_error(undef, "Open git-rev-list failed");
3351        my @revlist = map { chomp; $_ } <$fd>;
3352        close $fd;
3353
3354        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3355
3356        git_header_html();
3357        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3358
3359        if (!@revlist) {
3360                my %co = parse_commit($hash);
3361
3362                git_print_header_div('summary', $project);
3363                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3364        }
3365        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3366                my $commit = $revlist[$i];
3367                my $ref = format_ref_marker($refs, $commit);
3368                my %co = parse_commit($commit);
3369                next if !%co;
3370                my %ad = parse_date($co{'author_epoch'});
3371                git_print_header_div('commit',
3372                               "<span class=\"age\">$co{'age_string'}</span>" .
3373                               esc_html($co{'title'}) . $ref,
3374                               $commit);
3375                print "<div class=\"title_text\">\n" .
3376                      "<div class=\"log_link\">\n" .
3377                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3378                      " | " .
3379                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3380                      " | " .
3381                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3382                      "<br/>\n" .
3383                      "</div>\n" .
3384                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3385                      "</div>\n";
3386
3387                print "<div class=\"log_body\">\n";
3388                git_print_log($co{'comment'}, -final_empty_line=> 1);
3389                print "</div>\n";
3390        }
3391        git_footer_html();
3392}
3393
3394sub git_commit {
3395        my %co = parse_commit($hash);
3396        if (!%co) {
3397                die_error(undef, "Unknown commit object");
3398        }
3399        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3400        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3401
3402        my $parent = $co{'parent'};
3403        if (!defined $parent) {
3404                $parent = "--root";
3405        }
3406        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3407                @diff_opts, $parent, $hash, "--"
3408                or die_error(undef, "Open git-diff-tree failed");
3409        my @difftree = map { chomp; $_ } <$fd>;
3410        close $fd or die_error(undef, "Reading git-diff-tree failed");
3411
3412        # non-textual hash id's can be cached
3413        my $expires;
3414        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3415                $expires = "+1d";
3416        }
3417        my $refs = git_get_references();
3418        my $ref = format_ref_marker($refs, $co{'id'});
3419
3420        my $have_snapshot = gitweb_have_snapshot();
3421
3422        my @views_nav = ();
3423        if (defined $file_name && defined $co{'parent'}) {
3424                push @views_nav,
3425                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3426                                "blame");
3427        }
3428        git_header_html(undef, $expires);
3429        git_print_page_nav('commit', '',
3430                           $hash, $co{'tree'}, $hash,
3431                           join (' | ', @views_nav));
3432
3433        if (defined $co{'parent'}) {
3434                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3435        } else {
3436                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3437        }
3438        print "<div class=\"title_text\">\n" .
3439              "<table cellspacing=\"0\">\n";
3440        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3441              "<tr>" .
3442              "<td></td><td> $ad{'rfc2822'}";
3443        if ($ad{'hour_local'} < 6) {
3444                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3445                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3446        } else {
3447                printf(" (%02d:%02d %s)",
3448                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3449        }
3450        print "</td>" .
3451              "</tr>\n";
3452        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3453        print "<tr><td></td><td> $cd{'rfc2822'}" .
3454              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3455              "</td></tr>\n";
3456        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3457        print "<tr>" .
3458              "<td>tree</td>" .
3459              "<td class=\"sha1\">" .
3460              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3461                       class => "list"}, $co{'tree'}) .
3462              "</td>" .
3463              "<td class=\"link\">" .
3464              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3465                      "tree");
3466        if ($have_snapshot) {
3467                print " | " .
3468                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3469        }
3470        print "</td>" .
3471              "</tr>\n";
3472        my $parents = $co{'parents'};
3473        foreach my $par (@$parents) {
3474                print "<tr>" .
3475                      "<td>parent</td>" .
3476                      "<td class=\"sha1\">" .
3477                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3478                               class => "list"}, $par) .
3479                      "</td>" .
3480                      "<td class=\"link\">" .
3481                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3482                      " | " .
3483                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3484                      "</td>" .
3485                      "</tr>\n";
3486        }
3487        print "</table>".
3488              "</div>\n";
3489
3490        print "<div class=\"page_body\">\n";
3491        git_print_log($co{'comment'});
3492        print "</div>\n";
3493
3494        git_difftree_body(\@difftree, $hash, $parent);
3495
3496        git_footer_html();
3497}
3498
3499sub git_blobdiff {
3500        my $format = shift || 'html';
3501
3502        my $fd;
3503        my @difftree;
3504        my %diffinfo;
3505        my $expires;
3506
3507        # preparing $fd and %diffinfo for git_patchset_body
3508        # new style URI
3509        if (defined $hash_base && defined $hash_parent_base) {
3510                if (defined $file_name) {
3511                        # read raw output
3512                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3513                                $hash_parent_base, $hash_base,
3514                                "--", $file_name
3515                                or die_error(undef, "Open git-diff-tree failed");
3516                        @difftree = map { chomp; $_ } <$fd>;
3517                        close $fd
3518                                or die_error(undef, "Reading git-diff-tree failed");
3519                        @difftree
3520                                or die_error('404 Not Found', "Blob diff not found");
3521
3522                } elsif (defined $hash &&
3523                         $hash =~ /[0-9a-fA-F]{40}/) {
3524                        # try to find filename from $hash
3525
3526                        # read filtered raw output
3527                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3528                                $hash_parent_base, $hash_base, "--"
3529                                or die_error(undef, "Open git-diff-tree failed");
3530                        @difftree =
3531                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3532                                # $hash == to_id
3533                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3534                                map { chomp; $_ } <$fd>;
3535                        close $fd
3536                                or die_error(undef, "Reading git-diff-tree failed");
3537                        @difftree
3538                                or die_error('404 Not Found', "Blob diff not found");
3539
3540                } else {
3541                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3542                }
3543
3544                if (@difftree > 1) {
3545                        die_error('404 Not Found', "Ambiguous blob diff specification");
3546                }
3547
3548                %diffinfo = parse_difftree_raw_line($difftree[0]);
3549                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3550                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3551
3552                $hash_parent ||= $diffinfo{'from_id'};
3553                $hash        ||= $diffinfo{'to_id'};
3554
3555                # non-textual hash id's can be cached
3556                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3557                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3558                        $expires = '+1d';
3559                }
3560
3561                # open patch output
3562                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3563                        '-p', $hash_parent_base, $hash_base,
3564                        "--", $file_name
3565                        or die_error(undef, "Open git-diff-tree failed");
3566        }
3567
3568        # old/legacy style URI
3569        if (!%diffinfo && # if new style URI failed
3570            defined $hash && defined $hash_parent) {
3571                # fake git-diff-tree raw output
3572                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3573                $diffinfo{'from_id'} = $hash_parent;
3574                $diffinfo{'to_id'}   = $hash;
3575                if (defined $file_name) {
3576                        if (defined $file_parent) {
3577                                $diffinfo{'status'} = '2';
3578                                $diffinfo{'from_file'} = $file_parent;
3579                                $diffinfo{'to_file'}   = $file_name;
3580                        } else { # assume not renamed
3581                                $diffinfo{'status'} = '1';
3582                                $diffinfo{'from_file'} = $file_name;
3583                                $diffinfo{'to_file'}   = $file_name;
3584                        }
3585                } else { # no filename given
3586                        $diffinfo{'status'} = '2';
3587                        $diffinfo{'from_file'} = $hash_parent;
3588                        $diffinfo{'to_file'}   = $hash;
3589                }
3590
3591                # non-textual hash id's can be cached
3592                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3593                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3594                        $expires = '+1d';
3595                }
3596
3597                # open patch output
3598                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3599                        $hash_parent, $hash, "--"
3600                        or die_error(undef, "Open git-diff failed");
3601        } else  {
3602                die_error('404 Not Found', "Missing one of the blob diff parameters")
3603                        unless %diffinfo;
3604        }
3605
3606        # header
3607        if ($format eq 'html') {
3608                my $formats_nav =
3609                        $cgi->a({-href => href(action=>"blobdiff_plain",
3610                                               hash=>$hash, hash_parent=>$hash_parent,
3611                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3612                                               file_name=>$file_name, file_parent=>$file_parent)},
3613                                "raw");
3614                git_header_html(undef, $expires);
3615                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3616                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3617                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3618                } else {
3619                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3620                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3621                }
3622                if (defined $file_name) {
3623                        git_print_page_path($file_name, "blob", $hash_base);
3624                } else {
3625                        print "<div class=\"page_path\"></div>\n";
3626                }
3627
3628        } elsif ($format eq 'plain') {
3629                print $cgi->header(
3630                        -type => 'text/plain',
3631                        -charset => 'utf-8',
3632                        -expires => $expires,
3633                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3634
3635                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3636
3637        } else {
3638                die_error(undef, "Unknown blobdiff format");
3639        }
3640
3641        # patch
3642        if ($format eq 'html') {
3643                print "<div class=\"page_body\">\n";
3644
3645                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3646                close $fd;
3647
3648                print "</div>\n"; # class="page_body"
3649                git_footer_html();
3650
3651        } else {
3652                while (my $line = <$fd>) {
3653                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3654                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3655
3656                        print $line;
3657
3658                        last if $line =~ m!^\+\+\+!;
3659                }
3660                local $/ = undef;
3661                print <$fd>;
3662                close $fd;
3663        }
3664}
3665
3666sub git_blobdiff_plain {
3667        git_blobdiff('plain');
3668}
3669
3670sub git_commitdiff {
3671        my $format = shift || 'html';
3672        my %co = parse_commit($hash);
3673        if (!%co) {
3674                die_error(undef, "Unknown commit object");
3675        }
3676
3677        # we need to prepare $formats_nav before any parameter munging
3678        my $formats_nav;
3679        if ($format eq 'html') {
3680                $formats_nav =
3681                        $cgi->a({-href => href(action=>"commitdiff_plain",
3682                                               hash=>$hash, hash_parent=>$hash_parent)},
3683                                "raw");
3684
3685                if (defined $hash_parent) {
3686                        # commitdiff with two commits given
3687                        my $hash_parent_short = $hash_parent;
3688                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3689                                $hash_parent_short = substr($hash_parent, 0, 7);
3690                        }
3691                        $formats_nav .=
3692                                ' (from: ' .
3693                                $cgi->a({-href => href(action=>"commitdiff",
3694                                                       hash=>$hash_parent)},
3695                                        esc_html($hash_parent_short)) .
3696                                ')';
3697                } elsif (!$co{'parent'}) {
3698                        # --root commitdiff
3699                        $formats_nav .= ' (initial)';
3700                } elsif (scalar @{$co{'parents'}} == 1) {
3701                        # single parent commit
3702                        $formats_nav .=
3703                                ' (parent: ' .
3704                                $cgi->a({-href => href(action=>"commitdiff",
3705                                                       hash=>$co{'parent'})},
3706                                        esc_html(substr($co{'parent'}, 0, 7))) .
3707                                ')';
3708                } else {
3709                        # merge commit
3710                        $formats_nav .=
3711                                ' (merge: ' .
3712                                join(' ', map {
3713                                        $cgi->a({-href => href(action=>"commitdiff",
3714                                                               hash=>$_)},
3715                                                esc_html(substr($_, 0, 7)));
3716                                } @{$co{'parents'}} ) .
3717                                ')';
3718                }
3719        }
3720
3721        if (!defined $hash_parent) {
3722                $hash_parent = $co{'parent'} || '--root';
3723        }
3724
3725        # read commitdiff
3726        my $fd;
3727        my @difftree;
3728        if ($format eq 'html') {
3729                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3730                        "--no-commit-id", "--patch-with-raw", "--full-index",
3731                        $hash_parent, $hash, "--"
3732                        or die_error(undef, "Open git-diff-tree failed");
3733
3734                while (chomp(my $line = <$fd>)) {
3735                        # empty line ends raw part of diff-tree output
3736                        last unless $line;
3737                        push @difftree, $line;
3738                }
3739
3740        } elsif ($format eq 'plain') {
3741                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3742                        '-p', $hash_parent, $hash, "--"
3743                        or die_error(undef, "Open git-diff-tree failed");
3744
3745        } else {
3746                die_error(undef, "Unknown commitdiff format");
3747        }
3748
3749        # non-textual hash id's can be cached
3750        my $expires;
3751        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3752                $expires = "+1d";
3753        }
3754
3755        # write commit message
3756        if ($format eq 'html') {
3757                my $refs = git_get_references();
3758                my $ref = format_ref_marker($refs, $co{'id'});
3759
3760                git_header_html(undef, $expires);
3761                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3762                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3763                git_print_authorship(\%co);
3764                print "<div class=\"page_body\">\n";
3765                if (@{$co{'comment'}} > 1) {
3766                        print "<div class=\"log\">\n";
3767                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3768                        print "</div>\n"; # class="log"
3769                }
3770
3771        } elsif ($format eq 'plain') {
3772                my $refs = git_get_references("tags");
3773                my $tagname = git_get_rev_name_tags($hash);
3774                my $filename = basename($project) . "-$hash.patch";
3775
3776                print $cgi->header(
3777                        -type => 'text/plain',
3778                        -charset => 'utf-8',
3779                        -expires => $expires,
3780                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3781                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3782                print <<TEXT;
3783From: $co{'author'}
3784Date: $ad{'rfc2822'} ($ad{'tz_local'})
3785Subject: $co{'title'}
3786TEXT
3787                print "X-Git-Tag: $tagname\n" if $tagname;
3788                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3789
3790                foreach my $line (@{$co{'comment'}}) {
3791                        print "$line\n";
3792                }
3793                print "---\n\n";
3794        }
3795
3796        # write patch
3797        if ($format eq 'html') {
3798                git_difftree_body(\@difftree, $hash, $hash_parent);
3799                print "<br/>\n";
3800
3801                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3802                close $fd;
3803                print "</div>\n"; # class="page_body"
3804                git_footer_html();
3805
3806        } elsif ($format eq 'plain') {
3807                local $/ = undef;
3808                print <$fd>;
3809                close $fd
3810                        or print "Reading git-diff-tree failed\n";
3811        }
3812}
3813
3814sub git_commitdiff_plain {
3815        git_commitdiff('plain');
3816}
3817
3818sub git_history {
3819        if (!defined $hash_base) {
3820                $hash_base = git_get_head_hash($project);
3821        }
3822        if (!defined $page) {
3823                $page = 0;
3824        }
3825        my $ftype;
3826        my %co = parse_commit($hash_base);
3827        if (!%co) {
3828                die_error(undef, "Unknown commit object");
3829        }
3830
3831        my $refs = git_get_references();
3832        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3833
3834        if (!defined $hash && defined $file_name) {
3835                $hash = git_get_hash_by_path($hash_base, $file_name);
3836        }
3837        if (defined $hash) {
3838                $ftype = git_get_type($hash);
3839        }
3840
3841        open my $fd, "-|",
3842                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3843                        or die_error(undef, "Open git-rev-list-failed");
3844        my @revlist = map { chomp; $_ } <$fd>;
3845        close $fd
3846                or die_error(undef, "Reading git-rev-list failed");
3847
3848        my $paging_nav = '';
3849        if ($page > 0) {
3850                $paging_nav .=
3851                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3852                                               file_name=>$file_name)},
3853                                "first");
3854                $paging_nav .= " &sdot; " .
3855                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3856                                               file_name=>$file_name, page=>$page-1),
3857                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3858        } else {
3859                $paging_nav .= "first";
3860                $paging_nav .= " &sdot; prev";
3861        }
3862        if ($#revlist >= (100 * ($page+1)-1)) {
3863                $paging_nav .= " &sdot; " .
3864                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3865                                               file_name=>$file_name, page=>$page+1),
3866                                 -accesskey => "n", -title => "Alt-n"}, "next");
3867        } else {
3868                $paging_nav .= " &sdot; next";
3869        }
3870        my $next_link = '';
3871        if ($#revlist >= (100 * ($page+1)-1)) {
3872                $next_link =
3873                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3874                                               file_name=>$file_name, page=>$page+1),
3875                                 -title => "Alt-n"}, "next");
3876        }
3877
3878        git_header_html();
3879        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3880        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3881        git_print_page_path($file_name, $ftype, $hash_base);
3882
3883        git_history_body(\@revlist, ($page * 100), $#revlist,
3884                         $refs, $hash_base, $ftype, $next_link);
3885
3886        git_footer_html();
3887}
3888
3889sub git_search {
3890        if (!defined $searchtext) {
3891                die_error(undef, "Text field empty");
3892        }
3893        if (!defined $hash) {
3894                $hash = git_get_head_hash($project);
3895        }
3896        my %co = parse_commit($hash);
3897        if (!%co) {
3898                die_error(undef, "Unknown commit object");
3899        }
3900
3901        $searchtype ||= 'commit';
3902        if ($searchtype eq 'pickaxe') {
3903                # pickaxe may take all resources of your box and run for several minutes
3904                # with every query - so decide by yourself how public you make this feature
3905                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3906                if (!$have_pickaxe) {
3907                        die_error('403 Permission denied', "Permission denied");
3908                }
3909        }
3910
3911        git_header_html();
3912        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3913        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3914
3915        print "<table cellspacing=\"0\">\n";
3916        my $alternate = 1;
3917        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3918                $/ = "\0";
3919                open my $fd, "-|", git_cmd(), "rev-list",
3920                        "--header", "--parents", $hash, "--"
3921                        or next;
3922                while (my $commit_text = <$fd>) {
3923                        if (!grep m/$searchtext/i, $commit_text) {
3924                                next;
3925                        }
3926                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3927                                next;
3928                        }
3929                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3930                                next;
3931                        }
3932                        my @commit_lines = split "\n", $commit_text;
3933                        my %co = parse_commit(undef, \@commit_lines);
3934                        if (!%co) {
3935                                next;
3936                        }
3937                        if ($alternate) {
3938                                print "<tr class=\"dark\">\n";
3939                        } else {
3940                                print "<tr class=\"light\">\n";
3941                        }
3942                        $alternate ^= 1;
3943                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3944                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3945                              "<td>" .
3946                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3947                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3948                        my $comment = $co{'comment'};
3949                        foreach my $line (@$comment) {
3950                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3951                                        my $lead = esc_html($1) || "";
3952                                        $lead = chop_str($lead, 30, 10);
3953                                        my $match = esc_html($2) || "";
3954                                        my $trail = esc_html($3) || "";
3955                                        $trail = chop_str($trail, 30, 10);
3956                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3957                                        print chop_str($text, 80, 5) . "<br/>\n";
3958                                }
3959                        }
3960                        print "</td>\n" .
3961                              "<td class=\"link\">" .
3962                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3963                              " | " .
3964                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3965                        print "</td>\n" .
3966                              "</tr>\n";
3967                }
3968                close $fd;
3969        }
3970
3971        if ($searchtype eq 'pickaxe') {
3972                $/ = "\n";
3973                my $git_command = git_cmd_str();
3974                open my $fd, "-|", "$git_command rev-list $hash | " .
3975                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3976                undef %co;
3977                my @files;
3978                while (my $line = <$fd>) {
3979                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3980                                my %set;
3981                                $set{'file'} = $6;
3982                                $set{'from_id'} = $3;
3983                                $set{'to_id'} = $4;
3984                                $set{'id'} = $set{'to_id'};
3985                                if ($set{'id'} =~ m/0{40}/) {
3986                                        $set{'id'} = $set{'from_id'};
3987                                }
3988                                if ($set{'id'} =~ m/0{40}/) {
3989                                        next;
3990                                }
3991                                push @files, \%set;
3992                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3993                                if (%co) {
3994                                        if ($alternate) {
3995                                                print "<tr class=\"dark\">\n";
3996                                        } else {
3997                                                print "<tr class=\"light\">\n";
3998                                        }
3999                                        $alternate ^= 1;
4000                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4001                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4002                                              "<td>" .
4003                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4004                                                      -class => "list subject"},
4005                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4006                                        while (my $setref = shift @files) {
4007                                                my %set = %$setref;
4008                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4009                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4010                                                              -class => "list"},
4011                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4012                                                      "<br/>\n";
4013                                        }
4014                                        print "</td>\n" .
4015                                              "<td class=\"link\">" .
4016                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4017                                              " | " .
4018                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4019                                        print "</td>\n" .
4020                                              "</tr>\n";
4021                                }
4022                                %co = parse_commit($1);
4023                        }
4024                }
4025                close $fd;
4026        }
4027        print "</table>\n";
4028        git_footer_html();
4029}
4030
4031sub git_search_help {
4032        git_header_html();
4033        git_print_page_nav('','', $hash,$hash,$hash);
4034        print <<EOT;
4035<dl>
4036<dt><b>commit</b></dt>
4037<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4038<dt><b>author</b></dt>
4039<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4040<dt><b>committer</b></dt>
4041<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4042EOT
4043        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4044        if ($have_pickaxe) {
4045                print <<EOT;
4046<dt><b>pickaxe</b></dt>
4047<dd>All commits that caused the string to appear or disappear from any file (changes that
4048added, removed or "modified" the string) will be listed. This search can take a while and
4049takes a lot of strain on the server, so please use it wisely.</dd>
4050EOT
4051        }
4052        print "</dl>\n";
4053        git_footer_html();
4054}
4055
4056sub git_shortlog {
4057        my $head = git_get_head_hash($project);
4058        if (!defined $hash) {
4059                $hash = $head;
4060        }
4061        if (!defined $page) {
4062                $page = 0;
4063        }
4064        my $refs = git_get_references();
4065
4066        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4067        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4068                or die_error(undef, "Open git-rev-list failed");
4069        my @revlist = map { chomp; $_ } <$fd>;
4070        close $fd;
4071
4072        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4073        my $next_link = '';
4074        if ($#revlist >= (100 * ($page+1)-1)) {
4075                $next_link =
4076                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4077                                 -title => "Alt-n"}, "next");
4078        }
4079
4080
4081        git_header_html();
4082        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4083        git_print_header_div('summary', $project);
4084
4085        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4086
4087        git_footer_html();
4088}
4089
4090## ......................................................................
4091## feeds (RSS, OPML)
4092
4093sub git_rss {
4094        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4095        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4096                git_get_head_hash($project), "--"
4097                or die_error(undef, "Open git-rev-list failed");
4098        my @revlist = map { chomp; $_ } <$fd>;
4099        close $fd or die_error(undef, "Reading git-rev-list failed");
4100        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4101        print <<XML;
4102<?xml version="1.0" encoding="utf-8"?>
4103<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4104<channel>
4105<title>$project $my_uri $my_url</title>
4106<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
4107<description>$project log</description>
4108<language>en</language>
4109XML
4110
4111        for (my $i = 0; $i <= $#revlist; $i++) {
4112                my $commit = $revlist[$i];
4113                my %co = parse_commit($commit);
4114                # we read 150, we always show 30 and the ones more recent than 48 hours
4115                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
4116                        last;
4117                }
4118                my %cd = parse_date($co{'committer_epoch'});
4119                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4120                        $co{'parent'}, $co{'id'}, "--"
4121                        or next;
4122                my @difftree = map { chomp; $_ } <$fd>;
4123                close $fd
4124                        or next;
4125                print "<item>\n" .
4126                      "<title>" .
4127                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
4128                      "</title>\n" .
4129                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
4130                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4131                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
4132                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
4133                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
4134                      "<content:encoded>" .
4135                      "<![CDATA[\n";
4136                my $comment = $co{'comment'};
4137                foreach my $line (@$comment) {
4138                        $line = to_utf8($line);
4139                        print "$line<br/>\n";
4140                }
4141                print "<br/>\n";
4142                foreach my $line (@difftree) {
4143                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
4144                                next;
4145                        }
4146                        my $file = esc_path(unquote($7));
4147                        $file = to_utf8($file);
4148                        print "$file<br/>\n";
4149                }
4150                print "]]>\n" .
4151                      "</content:encoded>\n" .
4152                      "</item>\n";
4153        }
4154        print "</channel></rss>";
4155}
4156
4157sub git_opml {
4158        my @list = git_get_projects_list();
4159
4160        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4161        print <<XML;
4162<?xml version="1.0" encoding="utf-8"?>
4163<opml version="1.0">
4164<head>
4165  <title>$site_name OPML Export</title>
4166</head>
4167<body>
4168<outline text="git RSS feeds">
4169XML
4170
4171        foreach my $pr (@list) {
4172                my %proj = %$pr;
4173                my $head = git_get_head_hash($proj{'path'});
4174                if (!defined $head) {
4175                        next;
4176                }
4177                $git_dir = "$projectroot/$proj{'path'}";
4178                my %co = parse_commit($head);
4179                if (!%co) {
4180                        next;
4181                }
4182
4183                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4184                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4185                my $html = "$my_url?p=$proj{'path'};a=summary";
4186                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4187        }
4188        print <<XML;
4189</outline>
4190</body>
4191</opml>
4192XML
4193}